You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, I am here to help you. Can I know your name to proceed?

USER: Sure, my name is Charles Baker.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry, there is no reservation found on your name.

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

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