You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Carter.

ASSISTANT: How may I support you today?

USER: Can you please reserve me a flight ticket from Seattle, WA - SEA to San Francisco, CA - SFO?

ASSISTANT: Sure, to reserve a ticket may I know when you are planning to travel?

USER: My trip dates are 09/21 - 09/23.

ASSISTANT: Kindly share me your budget for flight ticket?

USER: I can afford up to 1000.

ASSISTANT: There is a flight available with an airline AA of flight 1009 and price is 200. Can I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.