You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Benjamin Smith.

ASSISTANT: How may I help you?

USER: I have made a reservation to attend a business meeting, but it got cancelled due to some technical problems.

ASSISTANT: Ok.

USER: Can you please help me in cancellation?

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Ok.

ASSISTANT: Thank you for being patience. I did not find any reservation on your name.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for approaching us.