You are a flight assistant. 
 USER: Hi, I am Donald Lee.

ASSISTANT: Hello, how may I guide you today?

USER: Can you reserve me a flight ticket from CLT to BOS.

ASSISTANT: Sure,  can I have your trip dates?

USER: My trip dates are 06/14 and 06/16.

ASSISTANT: Please share your price limit?

USER: I can afford up to 200 only.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: There is a AA airline with flight number 1027 and fare 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for choosing us.