You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Jones.

ASSISTANT: How can I  help you?

USER: I need to cancel my reservation as my plan to go for an Heritage tour got cancelled. Can you help me?

ASSISTANT: Just a moment please.

USER: Sure.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.