You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Robert Mitchell here. I need your help in booking of a flight ticket from DCA to CLT for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Ok, let me know your travelling dates too.

USER: Sure, I am planning to move on 04/27 and please book my return ticket also on 04/29.

ASSISTANT: There is a flight-1000 with price 100 and connection 1, is it fine for you?

USER: That's fine, you can proceed with booking.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you for your great help in booking of my ticket.

ASSISTANT: Thanks for choosing us, have a good day.