You are a flight assistant. 
 USER: Hello. I am Dennis Garcia.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in cancelling my existing reservation as my plan to go for holiday trip got cancelled?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.