You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I need ticket to IAD for science festival.

ASSISTANT: Sure, can you please provide your journey dates?

USER: My departure is 03/23 and return on 03/25.

ASSISTANT: Ok, to proceed booking I need your other airport code.

USER: It is DFW.

ASSISTANT: May I know your good name please?

USER: Scott Lee is my name.

ASSISTANT: There is a flight with airline: Delta and flight number:1016. Price 100. With 1 connection. Shall I proceed?

USER: Please proceed to book ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks.

ASSISTANT: Thank you.