You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please mention your name to check further in our database?

USER: Karen Garcia here.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT:  Sorry, no reservation found on your given name in our database to cancel it.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us and have a nice day.