You are a flight assistant. 
 USER: Hi. George Roberts here.

ASSISTANT: Hello. How may I help you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to help you. Can you please give me a minute?

USER: Ok.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name.

USER: Not a problem. Thank you.

ASSISTANT: You are welcome. Thank you for choosing us.