You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: I am Patrick Smith, I want to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, please give me a minute.

USER: OK.

ASSISTANT: There is no reservation found on your name in our database.

USER: Ok, not a problem. leave it. Thanks for the information.

ASSISTANT: Thanks for availing us.