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

ASSISTANT: Hello, How may I assist you for the day?

USER: Owing and emergence I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, Wait a moment I will check and let you know.

USER: Ok.

ASSISTANT: No reservation found with your specified name.

USER: Ok, no issues.

ASSISTANT: Thank you for contacting us, Have a great day.

USER: Thanks for the service.