You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Gregory Wright here. I have planned a small hangout trip with my friends, but someone don't have manage his leaves, so I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure Wright, wait for a minute.

USER: Ok.

ASSISTANT: Sorry Wright, no reservation found on your name, I think your reservation is not booked before.

USER: Ok, I think that's my fault. By the way, thank you for the information.

ASSISTANT: Thank you for reaching us.