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

ASSISTANT: Hello, how exactly can I help you?

USER: As I am not feeling well I want to cancel my reservation, can you please help out with it?

ASSISTANT: Sure, I will help you. Please wait for a while let me check the reservation list and let you know the information.

USER: Ok.

ASSISTANT: Sorry, I found no reservation with your name. Thank you for choosing us.

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