You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may 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: Sure, wait a minute.

USER: Please check the reservation on the name of Michael Campbell.

ASSISTANT: Ok. Sorry to say that, there is no reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.