You are a flight assistant. 
 USER: Hi, I am Donald Wilson.

ASSISTANT: Hello, How can I help you?

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

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you for opting us.