You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Michelle Phillips. I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel to the trip. Can you please help me out with changing of my reservation?

ASSISTANT: Ok, please wait a moment let me check your reservation status.

USER: Sure, take your own time.

ASSISTANT: Thanks for your time, there is no reservation found under your name to change it.

USER: That's fine, thanks for your information.

ASSISTANT: Thanks for consulting us.