You are a flight assistant. 
 USER: Hello. I am David Edwards.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Comic Cone at Minneapolis & St.Paul MSP, can you help me with booking on 12/17?

ASSISTANT: Sure, when do you want to return?

USER: I intend to return on 12/19.

ASSISTANT: Ok, From where do you want to start your journey?

USER: My starting point is Washington IAD.

ASSISTANT: Ok, May I know your price limit?

USER: My fare limit is 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1028 AA airline with a fare of 200. Can I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.