You are a flight assistant. 
 USER: Hello, I am Stephanie Martinez.

ASSISTANT: Hello, how can I abet you today?

USER: I want to cancel my reservation due sudden change in my plan.

ASSISTANT: Ok.

USER: Can you help me out?

ASSISTANT: Sure. Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for reaching us.