You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a flight from CLT to HOU. Can you please help me with the booking?

ASSISTANT: Sure, may I know your name?

USER: My name is Carol Lee.

ASSISTANT: Can I know your travelling dates?

USER: I want to travel on Sept 9 and need to return on Sept 11.

ASSISTANT: May I know your other preferences?

USER: No.

ASSISTANT: There is a flight of Jetblue airline, flight number 1011 with the fare of 200.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.