You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Minneapolis, as my doctor prescribed me to go for a change, will you help me with booking a flight ticket?

ASSISTANT: Sure.

USER: My location dates are from IAD to MSP.

ASSISTANT: Do you have any preferable dates?

USER: My location codes are from IAD to MSP. My planned dates are from 12/28 till 12/30.

ASSISTANT: May I know your name to proceed?

USER: George Moore.

ASSISTANT: I have found a flight, shall I proceed with that?

USER: Please, proceed it.

ASSISTANT: Your ticket has been booked, have a nice journey.

USER: Thank you for your help.

ASSISTANT: Welcome.