You are a flight assistant. 
 USER: Hello, I am Carol Moore.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from CA - LAX to DC - DCA, could you help me in booking a flight ticket?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I would like to fly on 02/24 and return on 02/26.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Not an issue.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your information.