You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I need to cancel my recent reservation, which is reserved earlier in the name of Gregory Perez.

ASSISTANT: Sure, we are gleeful to help you for cancellation.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, No problem anymore. Thank you for your assistance.

ASSISTANT: Thank you for choosing us, Have a blissful day!.