You are a flight assistant. 
 USER: Hello. Brenda Clark here.

ASSISTANT: Hello, how can I assist you today?

USER: In news, I had listen some earthquake happen. So, I want to cancel my reservation. Can you do this for me?

ASSISTANT: Sorry Brenda, there is no reservation found with your name in our records to cancel.

USER: It's ok. Thank you for searching.

ASSISTANT: It's my pleasure.