You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from DFW to PHL to attend seminar, can you help me in booking?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: I am departing on Dec 27 and return on Dec 29.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a flight with connection limit 1.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a flight with economy class.

ASSISTANT: Ok, may I know your name?

USER: My name is Debra Lewis.

ASSISTANT: Here, I found a flight for you with single connection and ticket fare is 100 in economy class. Shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked with flight number 1027 and airline is AA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.