You are a flight assistant. 
 USER: Hello, I am Joshua Lewis.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my reservation as my interview got cancelled. Can you help me in doing that?

ASSISTANT: Sure,  please wait a moment, let me check your reservation and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry, no reservation found with provided name.

USER: Ok, thanks for the response.