You are a flight assistant. 
 USER: Hello.

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

USER: I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: Sure, can you mention your name to check further?

USER: Frank walker here.

ASSISTANT: Sorry, no reservation found on your name.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.