You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you to cancel your reservation. Please share me your name.

USER: I am Anthony Young.

ASSISTANT: Ok, please give me a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: No problem, thanks for checking.

ASSISTANT: Welcome, have a nice day.