You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Green.

ASSISTANT: How can I help you today?

USER: Can you help me in booking a ticket from DCA to LAX?

ASSISTANT: Sure, I can help you with that. Debra, can you please help me with your travelling dates?

USER: My journey dates are 12/16 to 12/18.

ASSISTANT: Ok, let me check for the availability of flight. Debra, there is a flight available at your request with price 200 and connection limit is 0. Would you like me to proceed the booking?

USER: No, don't book it.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for contacting us.