loop:
    # Send a prompt to the user asking for their preferred contact method.
    response = talk(
        "Hi there! What's your preferred contact method (email, phone, or SMS)?",
        True,
        {"preferred_contact": "email"} // Example default value
    )
until "User provides a valid contact method":
    contactInfo = response.ask(
        question="Extract and validate the contact method from the response.",
        example={"preferred_contact": "email"}
    )
    # Validate the contact method; if invalid, the prompt repeats.
    if contactInfo["preferred_contact"] not in ["email", "phone", "SMS"]:
        print("Invalid contact method provided. Re-prompting...")
    else:
        print("Valid contact method received!")

# Extract structured details (full name and email) from a user response.
userDetails = response.ask(
    question="Return the user's full name and email address.",
    example={"full_name": "John Doe", "email": "[email protected]"}
)

state = {}
meta_prompt = "You're an assistant that helps the user book shifts."
res = say("Hello, I'm a chatbot. Let's start by gathering your details.")

loop:
    # Initiate conversation to collect user details.
    phone_response = talk(
        f"{meta_prompt} Please provide your phone number, full name, and facility name. Confirm these details once provided.",
        True,
        {"phone_number": "+16179011508", "full_name": "John Doe", "facility_name": "Facility A"}
    )
until "User has provided phone number, full name, and facility name and confirmed them":
    # Extract the user details.
    info = phone_response.ask(
        question="Extract the user's phone number, full name, and facility name.",
        example={"phone_number": "+16179011508", "full_name": "John Doe", "facility_name": "Facility A"}
    )
    random_value = RANDOM(10).generate()
    answer_ = api.get_req(
        url='https://apigateway.example.com/api/facilities',
        headers={
            'authorization': 'Bearer 123',
            'cbh-facility-user-phone-number-auth': info["phone_number"],
            'cbh-external-caller-session': random_value
        }
    ).ask(
        question="Verify the provided details. If successful, return the user's name, facility name, and email; otherwise, return 'ERROR'.",
        example={"name": "John Doe", "facility_name": "Facility A", "email": "[email protected]", "success": true}
    )
    print("Answer:", answer_)

    if not answer_["success"]:
        loop:
            phone_response = talk("Sorry, we couldn't verify your details. Please re-enter your information.", True)
        until "User confirms corrected details":
            info = phone_response.ask(
                question="Return the user's phone number, full name, and facility name.",
                example={"phone_number": "+16179011508", "full_name": "John Doe", "facility_name": "Facility A"}
            )
            state["info"] = info
    else:
        print("Verification successful:", answer_)

# Basic transfer
transfer("+1-800-123-4567")

# Transfer with extension (dials extension after call connects)
transfer("5302321272", "123")

# Transfer with extension and custom pause time
transfer("5302321272", {"extension": "123", "pauseSeconds": 2})

say("Thank you for calling. Goodbye!", exact=True)
end_call()