You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Andrew Phillips.

ASSISTANT: There is no reservation on your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for choosing us.