You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Debra Green here. I want to cancel my recent reservation due to some personal issues. can you please help me in that?

ASSISTANT: Sure, wait for a minute please.

USER: Ok, I will wait for your response. Its ok, no problem.

ASSISTANT: I have searched online I have found your flight reservation and cancelled it.

USER: Ok. Thanks for your help in cancelling my reservation.

ASSISTANT: Thank you.