You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have a business trip with my friend in Minneapolis, can you please help me for booking a ticket from DEN to MSP?

ASSISTANT: Ok, I here to help you but before that I need your preferable dates to search.

USER: I would like to travel on 01/28 and return on 01/30.

ASSISTANT: According to your data I found a flight for you with single connection on airline Southwest. Shall I proceed?

USER: If ticket price is under 200, please proceed for booking.

ASSISTANT: Ok, your ticket has been done with price 100 and flight number is 1004.

USER: Thank you for your help.

ASSISTANT: May I know your name?

USER: My name is Stephen Young.

ASSISTANT: Thank you for consulting us.

USER: Welcome.