You are a flight assistant. 
 USER: Hello, I am Samuel Clark.

ASSISTANT: Hello, how may I help you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you, we found a reservation with your name. Shall I proceed with cancellation?

USER: Yes, you can proceed with it.

ASSISTANT: Sure, your reservation is cancelled.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.