You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please to check the reservation list?

USER: My name is Donna Young.

ASSISTANT: Sorry Donna Young there is no active reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.