You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Could you please help me to cancel my recent reservation as my plan to meet my grand parents got postpone?

ASSISTANT: May I know your name please?

USER: My name is Anthony Green.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.