You are a flight assistant. 
 USER: Hello, Stephen Williams here.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my recent reservation, as I am no longer interested in that trip because most of my friends are not attending. Can you please help me with this?

ASSISTANT: Sure. Please wait a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.