You are a flight assistant. 
 USER: Hi,. I am Shirley Moore.

ASSISTANT: Hello, How can I aid you today?

USER: I would like to visit Houston Arboretum and Nature Centre at Houston, TX - IAH. Can you please avail me a flight ticket from Philadelphia, PA - PHL?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Kindly assign your preferable travel dates?

USER: My trip dates are 12/20 - 12/22.

ASSISTANT: How much you can afford for a flight ticket?

USER: I can afford up to 500 only.

ASSISTANT: Please wait for a minute, let me check the availability of flights and get back to you.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting, I found a connecting flight and flight number 1010 from Delta airline. Shall I proceed?

USER: Please reserve it.

ASSISTANT: Your flight booking is processed.

USER: Thank you.

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