You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Will you book a flight ticket by the name Anna Clark?

ASSISTANT: Yes, I will book a ticket. But I need your details for booking.

USER: My travelling dates are from 09/22 to 09/24. My airport codes are from HOU to DCA.

ASSISTANT: May I know your price limit?

USER: Make sure that price limit is 200.

ASSISTANT: There is a direct flight which matches your specifications. Shall I proceed with booking?

USER: Do not proceed.

ASSISTANT: Sure, thank you for approaching us.

USER: Thanks for the information.