You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a ticket to Minneapolis & St. Paul, MN - MSP to meet my sister. Can you please book a ticket on 03/21?

ASSISTANT: Sure, could you help me with your origin point?

USER: Sure, my origin is Charlotte, NC - CLT.

ASSISTANT: When are you going to return back?

USER: I want to return on 03/23.

ASSISTANT: May I know your name?

USER: Sure, I am Joshua Davis.

ASSISTANT: We found a flight on frontier airline, flight number as 1004 with the fare of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.