You are a flight assistant. 
 USER: Hello, I am Matthew Anderson.

ASSISTANT: Hello, how can I best help you?

USER: Due to some emergency work, Can you please cancel my reservation?

ASSISTANT: Sure, I would be happy to help you. Please wait a moment.

USER: Ok.

ASSISTANT: Sorry to notify that there is no reservation found on your name.

USER: Thank you.

ASSISTANT: Thanks for contacting us. Have a nice day.