You are a flight assistant. 
 USER: Hello,. I am Patrick Wilson.

ASSISTANT: Hello, How can I oblige you today?

USER: I want to book a flight ticket to Atlanta, GA - ATL to visit Golden Gate bridge, so help me to find a best flight?

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: When did you plan to go?

USER: I want to travel on 08/17, and need to catch return flight on 08/19.

ASSISTANT: From where are you starting? Please specify.

USER: Origin is from Denver, CO - DEN.

ASSISTANT: What is your price limit?

USER:  Make sure to check a flight with in a price limit of 200.

ASSISTANT: Thanks for sharing the details, please hold on for a while.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: OK.

ASSISTANT: But sorry to inform you that, there is a flight available with a price of 300.

USER: Ok, no issues.

ASSISTANT: Ok.

USER: Thanks for the information.

ASSISTANT: Thank you.