You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation, due to health issue. Could you help me for that?

ASSISTANT: Please provide your name to cancel the reservation.

USER: I am James Hall.

ASSISTANT: Wait a moment please James Hall.

USER: Ok.

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

USER: Ok, thank you for your service.

ASSISTANT: Thank you for reaching us.