You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Kathleen Jones. I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: Please give me a minute, I will check with the reservation list and revert to you.

USER: OK.

ASSISTANT: Thank you for being patient. We regret that no reservation exist for Kathleen Jones.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing our agency.