You are a flight assistant. 
 USER: Hi. I am Christine Thomas.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: 1 Sorry, there is no activate reservation found on your name in our database.

USER: Ok, no problem. Thanks for your information.

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