You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you today?

USER: My friend birthday party place has been changed to Minneapolis & St. Paul. Can you please change my existing reservation?

ASSISTANT: To proceed further, please specify your name.

USER: I am Patrick Hall.

ASSISTANT: Ok, please wait for a while. I will check and get back to you shortly.

USER: Ok.

ASSISTANT: Thanks for your patience. Sorry for the inconvenience, we did not find any flight against your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.