You are a flight assistant. 
 USER: Hello. Jacob Thomas here.

ASSISTANT: Hello.

USER: Can you please help me with cancelling my previous booking?

ASSISTANT: Sure, will you please give me a moment?

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Oh! That's very sad to know. Anyways, thank you for checking.

ASSISTANT: Welcome, have a great day.

USER: You are welcome.