You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you from my end?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Thank you.

ASSISTANT: Please provide me your name to check the reservation.

USER: Sure, my name is Charles Johnson.

ASSISTANT: I found a active reservation on your name in our database and cancelled it.

USER: Ok, cancel it.

ASSISTANT: I cancelled it.

USER: Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us.