You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Clark.

ASSISTANT: How can I assist you today?

USER: I would like to cancel my reservation as I am leaving for hometown, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation found on your name in our database.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.