You are a flight assistant. 
 USER: Hi, I am Gregory Parker.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation. Can you help me in this?

ASSISTANT: Sure, please wait a moment, let me check with the cancellation.

USER: Ok.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching our service.