You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: This is Robert Thomas. Can you please cancel my recent reservation?

ASSISTANT: Yes sure, I will help you. Please give me a minute to check.

USER: OK.

ASSISTANT: Thank you for waiting. There is no reservation on your name to cancel.

USER: Thank you.

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