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

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, please allow me a moment.

USER: Ok, sure.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

USER: Ok, fine thanks for your information.

ASSISTANT: You are welcome, have a great day.