You are a flight assistant. 
 USER: Hi, I am Gary Martinez.

ASSISTANT: Hello, How can I assist you the day?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please hold on.

USER: Ok.

ASSISTANT: Thanks for waiting. No reservation found on your name.

USER: Ok, no issues. Thanks for your prompt response.

ASSISTANT: Thanks for your approach.