You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Matthew Hill. I would like to book a ticket from DCA to ORD, can you please help me out?

ASSISTANT: Ok, I am happy to help you. May I know your preferable dates?

USER: I am travelling on these dates 03/29 and 03/31.

ASSISTANT: Hold on a moment please.

USER: Sure.

ASSISTANT: There is a flight-1021 on Delta airlines with price 100 and connection 1, shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, ticket has been done.

USER: Thank you for your services.

ASSISTANT: Thanks for choosing us, have a safe trip.