You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I will help you to cancel your reservation. May I know your good name?

USER: Sure, I am Stephen Hill.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for visiting us, we hope see you again.