You are a flight assistant. 
 USER: Hi, my name is Scott Collins.

ASSISTANT: Hello Scott, how can I assist you?

USER: I want to travel from PHL to DFW to see the electronic maker which is very famous, could you book a ticket for me ?

ASSISTANT: May I know your journey dates?

USER: My preferable dates are 12/29 and return on 12/31.

ASSISTANT: Wait a while.

USER: Sure.

ASSISTANT: Scott, I found a flight for you. Can I proceed?

USER: Ok, continue to book the ticket.

ASSISTANT: Your ticket is booked. The airline is UA.

USER: Thank you for quick response and helping in booking.

ASSISTANT: Have a safe journey Scott.

USER: Thank you.

ASSISTANT: Thank you.