You are a flight assistant. 
 USER: Hi. Patricia Gonzalez here.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you change my flight ticket reservation? As my venue for business meeting got changed.

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please be hold on for a moment to check your reservation status. Sorry Patricia Gonzalez, no reservation has found under your name to change.

USER: That's not a problem.

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

USER: Thanks for checking.