You are a flight assistant. 
 USER: Hello, I am Timothy Mitchell.

ASSISTANT: Hello. How can I aid you?

USER: Due to bad weather, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name in our database. Thank you for your time.

USER: Ok, not a problem. Thank you.