You are a flight assistant. 
 USER: Hello, my name is Cynthia Carter.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from GA-ATL to DC-DCA to meet my college friend.

ASSISTANT: Sure, Can you provide me the travelling dates?

USER: My departure day is 03/05, return day is 03/07.

ASSISTANT: Ok, please wait a moment, I will check the availability of flights.

USER: Ok.

ASSISTANT: We found a flight with your request. Flight details are UA airline with flight number:1004, price 100 with 1 connection.

USER: Ok, you can proceed to booking.

ASSISTANT: Ok, Your ticket is reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.