You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Hill.

ASSISTANT: How can I help you at this moment?

USER: Can you please help me in changing my recent reservation?

ASSISTANT: Sure, I will help you with that. Please wait a moment, I will check your previous reservation status.

USER: Ok, sure. Take your own time.

ASSISTANT: I have found your reservation. Can you please mention your preferable airport code names?

USER: My new travelling airport codes are MSP - BOS.

ASSISTANT: May I know your preferable travel dates for booking flight ticket?

USER: My preferable travelling dates are 06/13 and 06/15.

ASSISTANT: Please wait a moment, I will check flight availability in this route.

USER: Ok, take your own time.

ASSISTANT: Based on your information, Southwest airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I book this flight ticket for you?

USER: Ok, please proceed with booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1029.

USER: Thank you for your help.

ASSISTANT: You are welcome Gary Hill.