You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Could you please aid me in cancellation as my plan to visit my grand parent's house got cancelled?

ASSISTANT: Sure, please let me know your name.

USER: I am Kenneth Brown.

ASSISTANT: There is no reservation active with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.