You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can help you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, we are glad to help you. On whose name, you want to cancel the reservation?

USER: Christopher Turner here.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found based on your given name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for consulting us.