You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to the ongoing tornado at my destination. can you help me cancelling my ticket?

ASSISTANT: Sure, please share me your name?

USER: Thank you. I am Jennifer Phillips.

ASSISTANT: There is no reservation on your name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you.