You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ronald Phillips here.

ASSISTANT: Phillips, how can I help you today?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I will help you out. Let me check your reservation status.

USER: Sure.

ASSISTANT: I found your reservation in our database, shall I cancel it?

USER: Yes.

ASSISTANT: I have cancelled your reservation successfully.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.