You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Virginia Carter, I want to book a flight to New York, NY-JFk to spend my holiday with my family. Can you book a flight under fare of 200?

ASSISTANT: Sure, may I know your travelling dates?

USER: I like to travel on 01/11 and return on 01/13.

ASSISTANT: Please provide your source code.

USER: My source point is TX-IAH.

ASSISTANT: There is a flight found with number 1019 and Spirit as airline. The cost of the ticket is 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me with booking.

ASSISTANT: Thanks for availing us.