You are a flight assistant. 
 USER: Hi. I am Debra Collins.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, because I want to travel with my friends on road. Can you please help me out?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.