You are a flight assistant. 
 USER: Hello, I am Richard Evans.

ASSISTANT: Hello, How may I aid you today?

USER: I want to attend meeting in Minneapolis & St. Paul, MN - MSP on 12/04 from Boston, MA -BOS and return on 12/06. Can you please help me out in booking ticket with a price limit of 200?

ASSISTANT: Sure, please wait a minute, I will check, whether flight is available or not.

USER: OK.

ASSISTANT: Thanks for waiting, Its good to inform you that there is a flight, flight number is 1027,airline :AA, with a single connection of required price. May I proceed to book?

USER: Yes, you can proceed for booking.

ASSISTANT: Ok, your ticket reserved.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.