You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Perez.

ASSISTANT: How can I assist you today?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I'm glad to help you with that. Please allow me some few seconds to check your reservation status.

USER: Sure.

ASSISTANT: Jason Perez, there is no reservation found under your name to do cancellation.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us, have a great day.