You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. Do you need any help from my side?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled. Please help me in this?

ASSISTANT: Sure, I can help you and can I know your name please for checking purpose?

USER: My name is Catherine Green.

ASSISTANT: Thank you for your information, I have checked with your request but I am unable to find your previous reservation in our back end to cancel it.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: You are most welcome and thank you for consulting our agency.