You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: My name is Mark Robinson.

ASSISTANT: How may I guide you?

USER: I would like to visit The White House for a meeting, could you help me in booking a flight ticket?

ASSISTANT: Sure, can I know the dates in which you are interested to travel?

USER: I would like to depart on 05/12 and would like to return back on 05/14.

ASSISTANT: Ok, can I know your airport codes?

USER: I will be travelling from SEA to IAD.

ASSISTANT: I found a flight 1018 which has 1 connection, shall I proceed?

USER: That's nice, please confirm my ticket.

ASSISTANT: Your ticket is booked with UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.