You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to attend for a client meeting about launching of new products has been postponed. Can you be my helping hand to cancel my recent reservation?

ASSISTANT: Sure, we are rapturous to help you.

USER: Thank you.

ASSISTANT: To proceed for cancellation, please provide your good name.

USER: You can check the reservation on the name of William Collins.

ASSISTANT: Ok, please give me a minute, I will check the reservation on your name and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for being patient. We are sorry to inform you that we did not find any reservation on your name in our system database.

USER: That's Ok, thanks for your kind response.

ASSISTANT: Thank you for approaching us.