You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Williams.

ASSISTANT: How may I help you?

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, please wait a moment I will revert you back with the preferable information. I got your reservation with your name, may I know your planned dates to go?

USER: I would like to take off on 01/07 and return on 01/09.

ASSISTANT: Ok, let me know your airport codes too.

USER: I would like to source airport code is MSP and destination airport code is LGA.

ASSISTANT: Please hold on a moment.

USER: Sure,take your time.

ASSISTANT: Thanks for your time, there is a flight-1013 with price 100. Is it ok for you?

USER: Please confirm the booking if the connection is 1.

ASSISTANT: Ok, your ticket has been booked with your new preferences.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for consulting us.