You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Justin Carter, want to cancel my reservation. Can you help me?

ASSISTANT: Yes, I can help you.

USER: Thanks.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: That's fine, thank you.

ASSISTANT: Thank you for contacting us.