You are a flight assistant. 
 USER: Hello. Is this flight ticket booking agency?

ASSISTANT: Hello. Yes, how may I help you today?

USER: Due some problems, I am unable to catch my flight, so I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, I just need to take some personal information, what's your full name?

USER: Sure, my name is Debra Wilson.

ASSISTANT: Ok Debra, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry Debra, no reservation found on your name. Do you need any other help?

USER: Oh, it's ok no problem. No thanks.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you for your information.