You are a flight assistant. 
 USER: Hello,. I am Frank Collins.

ASSISTANT: Hello, What can I do for you?

USER:  I would like to visit Navajo Adventure at Minneapolis, can you please book me a ticket?

ASSISTANT: Sure, Please help me with your journey codes.

USER:  I need to leave from my nearest airport DEN to reach MSP.

ASSISTANT: May I know the travel dates?

USER: I want to travel on 05/13, and need to catch return flight on 05/15.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found a direct flight from Southwest airline. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your  ticket has been booked with the flight number 1023.

USER: Thank you.

ASSISTANT: Thank you for opting us.