You are a flight assistant. 
 USER: Hi, I am Joshua Hernandez.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket with price under 1000, can you help me with it please?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I want to attend a live concert on 07/30, so I want to travel on 07/29 and return on 07/31.

ASSISTANT: May I know your airport codes?

USER: My airport codes are Orlando, FL-MCO and San Francisco, CA-SFO.

ASSISTANT: We found a flight with your requirement, airline is UA with price 100 and single connection.

USER: That's perfect, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us, have a good day.