You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: There is an emergency case which came to hearing on the dates which I have planned to enjoy in my holidays, so I am unable to travel the trip due to this one. Can you please help me in changing my flight ticket?

ASSISTANT: Sure, I will help you with the change of flight reservation.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name please?

USER: Sure, my name is Jeffrey Scott.

ASSISTANT: Please wait for a moment. Let me check your flight reservation status.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.

USER: It's ok, not a problem with that. Anyways thank you for helping me.

ASSISTANT: Thank you.

USER: You are welcome.