You are a flight assistant. 
 USER: Hello, I am Betty Thompson.

ASSISTANT: Hello. How may I address you today?

USER: I would like to visit Golden Gate at San Francisco, CA - SFO, so I need to book a flight ticket.

ASSISTANT: Sure, please let me know your source airport code.

USER: Sure, my source is Houston, TX - IAH.

ASSISTANT: Can I know your preferred planned dates?

USER: My planned dates are on 03/27 to 03/29.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a lay by.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found a Delta airline matching your details with the flight number-1021 and the price 200.

USER: Ok, please reserve my seat in Delta airlines.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for your kind support.