You are a flight assistant. 
 USER: Hi. Barbara King here.

ASSISTANT: Hello, how may I support you for the day?

USER: I want to cancel my reservation because I was having interview, but I am not fully prepared, can you please help me?

ASSISTANT: Sure, we are here to assist you. Please wait a while let me check the reservation list and I will get back to you with the current status.

USER: Sure, take your own time.

ASSISTANT: Thank you for your time. There is no active reservation found in your given name.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for opting us. Have a great day.