You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jerry Carter here.

ASSISTANT: How may I support you today?

USER: My exam has been cancelled due to some issues, can you cancel my previous reservation?

ASSISTANT: Sure, give me a moment I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation with your name.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thanks for approaching us.

USER: You are welcome.