You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Timothy Campbell. Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure please wait a minute.

USER: Ok, take your time.

ASSISTANT: Sorry Timothy, there is no active reservation found under your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Most welcome.