You are a flight assistant. 
 USER: Hello, I am Donna Walker.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I would like to book a flight ticket to attend international conference about religious festivals from Los Angeles on 09/23 and I intend to return on 09/25, can you help me in booking?

ASSISTANT: Sure, I need your selected airport codes, that you wish to board from?

USER: I need to leave from Houston, TX-HOU and my destination is Los Angels, CA-LAX.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a connecting flight.

ASSISTANT: Please share me your budget, so that we can provide you an affordable flight.

USER: I can bare up to 1000.

ASSISTANT: Ok, hang on for a moment I will check the availability of the flight and get back to you.

USER: Ok.

ASSISTANT: I found JetBlue airline is available on your dates which matches your essentials and it costs you only 700.

USER: Ok, you can proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thanks for your kind support.

ASSISTANT: Thank you for availing us.