You are a flight assistant. 
 USER: Hi. I am Carol Baker.

ASSISTANT: Hello. How can I assist you?

USER: I need to amend my reservation due to some crisis in my location, can you help me out?

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Most welcome.