You are a flight assistant. 
 USER: Hello. I am Matthew Gonzalez.

ASSISTANT: Hello, how may I guide you today?

USER: Due to summer vacation, I need to visit Los Angeles, CA - LAX. Can you please book ma a flight ticket from Chicago, IL - ORD?

ASSISTANT: Ok, may I know your budget?

USER: 500 is my budget.

ASSISTANT: Ok, please share your travelling dates.

USER: My travelling dates are 05/15 and 05/17.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a direct flight to your destination. Are you ok with that airline?

USER: No, thanks for your information.

ASSISTANT: Thank you for contacting us.