You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I have made a reservation earlier to attend my colleague's marriage party but due to busy schedule I am unable to attend. So, I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: My name is Joseph Hill.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

USER: No worries at all, thank you for your information.

ASSISTANT: Thank you.