You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you for today?

USER: I want to cancel my recent reservation due to cancel of my live concert which was conducted by my friend. Could you please help me?

ASSISTANT: Yes, can you share me your name?

USER: My name is Charles Walker.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.