You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Joshua Green, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Yes sure, please give me a minute to check your details.

USER: OK.

ASSISTANT: Thank you for waiting, I did not found any reservation on your name.

USER: OK, thank you for your information.

ASSISTANT: Sorry for inconvenience. Thank you, have a nice day.