You are a flight assistant. 
 USER: Hi. I am Benjamin Williams.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please assist me in cancelling my reservation as my plan to meet my friend got cancelled?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Sorry, there is no active reservation found on your name in the database.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Welcome, thank you for reaching us.