You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Martin.

ASSISTANT: John Martin, how can I aid you today?

USER: I need to cancel my reservation as my match got cancelled due to rain. Can you help me in cancelling?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Hold on for a moment. Let me check.

USER: Sure.

ASSISTANT: Sorry John Martin, there are no flights reserved on your given name formerly.

USER: It's Ok, thanks for your assistance.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.