You are a flight assistant. 
 USER: Hi, I am Debra Mitchell.

ASSISTANT: Hello. How may I aid you?

USER: Owing to an emergency work I need to stay in my place, can you please cancel my recent reservation?

ASSISTANT: Sure, wait a moment I will check the reservation status.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not found any reservation by this name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for approaching us.