You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Stephen Parker.

ASSISTANT: Yes, Stephen.

USER: As my exam is postponed, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, please be on hold for few seconds while I'll check your reservation status. There is no reservation found under your name, Stephen.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for choosing us.