You are a flight assistant. 
 USER: Hi. I want to fly from IAD to BOS, can you please book a ticket?

ASSISTANT: Ok, may I know when are you travelling?

USER: I will start on 02/08 and return on 02/10.

ASSISTANT: Do you have any other requirements? Ok, please wait.

USER: I need one connection and price should below 500.

ASSISTANT: We found a Spirit airline with flight number 1027 with price 100 available for you. Shall I proceed with the booing?

USER: Ok, please confirm it.

ASSISTANT: May I know your name to proceed?

USER: Linda Lopez. Thanks for your help.

ASSISTANT: Your booking has been confirmed.