You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking to cancel the recent ticket because my planned trip got cancelled. Can you please help me to cancel the ticket?

ASSISTANT: May I know your name please?

USER: Thank you. My name is David Jones.

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

USER: It's ok, thank you for searching my ticket status.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.