You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to cancel my previous ticket because the planned trip got cancelled suddenly, can you please help me to do that?

ASSISTANT: May, I know your good name?

USER: Thank you for accepting my request. My name is Kenneth Smith.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: It's ok, not an issue with that. Thank you for checking my ticket status.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.