You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I'm Lisa Lewis.

ASSISTANT: Nice to meet you Lisa.

USER: Thank you. I am planning to attend music concert at Washington, can you please help me with booking a flight ticket?

ASSISTANT: looks you are a big fan of music. To book the flight ticket I need your airport codes?

USER: Ye, my origin airport code is CLT and the destination airport code is IAD.

ASSISTANT: Ok, please share the travel dates?

USER: Sure, I would like to take off on 05/14 and return back from Washington on 05/16.

ASSISTANT: Wait for a moment please.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Thanks for your patience. I have found a flight with price 100 and one connection.

USER: That's great, please proceed with the booking.

ASSISTANT: Sure, your flight ticket is confirmed with UA airlines.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing our airlines.