You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for today?

USER: I am Deborah Wilson, planning to travel on 03/29.

ASSISTANT: Ok.

USER: Can you help me to book a flight from DCA?

ASSISTANT: Sure, I am happy to help you. Can you please provide your destination?

USER: I would like to travel to LAX to meet my family members.

ASSISTANT: Ok, if you want to have a return journey please mention on which day you want to have it?

USER: I think, my return will be on 03/31.

ASSISTANT: Give me a moment. There is a flight with JetBlue airlines providing service on your preferred dates. It costs you 200.

USER: Yes, you can proceed with booking.

ASSISTANT: Flight 1010 has been booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.Have a safe journey.