You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Joseph Adams.

ASSISTANT: How can I help you?

USER: Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, just a second please.

USER: Ok.

ASSISTANT: No reservation found on your name Mr.Joseph Adams.

USER: Ok, fine. Thank you for your help.

ASSISTANT: Thank you for reaching us.