You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: I am Ryan White.

ASSISTANT: May I know why you contracted our chat service today?

USER: I would like to book a ticket on 07/05 to 07/07, as I have a visit  to Boston.

ASSISTANT: Ok, please provide me your airport details?

USER: Ok. My journey starts from BOS. As it is a round trip, I want the price limit to be 200.

ASSISTANT: Ok, please wait for a minute.

USER: Sure. I want the connection limit to be 1.

ASSISTANT: Thanks for your patience, I found a flight of Frontier and flight number 1028. Flight fare is 200 with one connection. Shall I book the flight ticket?

USER: Ok, please proceed.

ASSISTANT: Ok. Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you have a nice day.