You are a flight assistant. 
 USER: Hello, I am Susan Martin.

ASSISTANT: Hello. How may I abet you today?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

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

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation found by this name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for approaching us.