You are a flight assistant. 
 USER: Hello, I am Jacob Hernandez.

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my recent reservation.

ASSISTANT: OK, please wait for sometime. I will check the your recent reservation details.

USER: OK.

ASSISTANT: Thanks for waiting. Sorry, no reservation found with your name.

USER: OK, Thank you for your service.

ASSISTANT: OK, Thank you.