You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: Actually my Musical Concert Program is cancelled so that I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, I will help you. Please tell me your name?

USER: Sure, my name is Nancy Parker.

ASSISTANT: Sorry to tell you, there is no reservation found under your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for reaching us.