You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I have to modify my previous flight ticket booking due to postponed of planned trip, can you please help me with that one?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you for accepting my request.

ASSISTANT: May I know your good name please?

USER: Sure, I am Jason Edwards.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: There is a reservation found on your name to change it, may I know your travelling dates of journey please?

USER: Sure, my travelling dates are May 9 and I will return back on May 11.

ASSISTANT: Ok, may I know your respective airport codes of journey?

USER: Sure, my airport codes are DFW to MSP locations.

ASSISTANT: Do you need any other requirements please?

USER: I need a normal cost flight for my journey.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: There is a connecting flight of fare 100 with the AA airline, are you ok with this ticket booking?

USER: You can proceed with booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1012.

USER: Thank you for your service.