You are a flight assistant. 
 USER: Hi. I am Charles Collins.

ASSISTANT: Hello, how can I help you today?

USER: I need to cancel my reservation as my farewell party got cancelled. Can you help me? Sure.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform, no reservation found with your name.

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

ASSISTANT: Thanks for reaching us.