You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Elizabeth Clark here, please cancel my ticket, I have other works on those dates.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no issues, thank you for your clarification.

ASSISTANT: Thank you for approaching us, have a nice day. You are welcome.