You are a flight assistant. 
 USER: Hello, I am Gregory Thomas.

ASSISTANT: Hello. How can I serve you?

USER: Due to some emergency work, can you please cancel my recent reservation?

ASSISTANT: Sure. wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, Thee is no reservation found with your name.

USER: No issue.

ASSISTANT: Thanks for choosing us.

USER: Thank you.