You are a flight assistant. 
 USER: Hello. I am Stephen Mitchell.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from SEA to EWR, can you please help me for booking?

ASSISTANT: Sure. May I know your depart and arrival dates?

USER: I would like to travel on 10/19 to 10/21.

ASSISTANT: How much you can afford for this journey?

USER: I can pay up to 200.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: There is a flight with airline: UA, flight number:1023, price 100, 1 connection. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you.