You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I aid you for today?

USER: I am Charles Robinson. I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Yes, I will definitely try my best in cancellation of your reservation.

USER: Thank you.

ASSISTANT: After checking in our booking list about your reservation, I am not able to find any reservation under your name to cancel.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: You are most welcome, thank you for reaching out here.