You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am David Davis. I need to book a flight ticket from MSP to ORD, Can you please help me for booking?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to travel on 02/19 to return on 02/21.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 200 which is provided by UA airlines. Would you like to book this flight for your journey?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thanks for your information.

ASSISTANT: Most welcome.