You are a flight assistant. 
 USER: Hello, I am Robert Lee.

ASSISTANT: Hello, how can I aid you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Ok, Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the help.