You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I am Richard Adams. I need to reach ORD to attend a client meeting. Can you book me a plane ticket from BOS?

ASSISTANT: Sure, I am here to do that. May I know your travelling dates?

USER: I would start on 05/12 and return on 05/14.

ASSISTANT: Do you have any particular connection limit?

USER: Yes, I need a single lay by.

ASSISTANT: May I know your price limit?

USER: I can afford up to 500 for a flight ticket.

ASSISTANT: Do you have any particular airline preference? Ok, please wait for a while, I will check with it.

USER: Sure.

ASSISTANT: Southwest airline is providing you a ticket with a fare of 100 and economy class, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with flight-1027.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us, have a happy journey.