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

ASSISTANT: Hello, how can I aid you now?

USER: I want to book a flight ticket to attend International Conference about Religious Festivals in Philadelphia, PA - PHL.

ASSISTANT: OK.

USER: Can you please make a flight reservation within the range of 200?

ASSISTANT: Ok, I can help you with that.

USER: Thank you.

ASSISTANT: May I know your planned dates of journey?

USER: My travelling dates are 01/01 - 01/03.

ASSISTANT: Your origin point please?

USER: I wish to board from Phoenix, AZ - PHX.

ASSISTANT: 1008 flight in Delta airline is available for you with an airfare of 100, shall I proceed for booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your booking has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us.