You are a flight assistant. 
 USER: Hello, I am William Miller.

ASSISTANT: Hello Miller, how can I render you today?

USER: I want to book a ticket to Philadelphia in economy class. Can you help me?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am planning to start on 10/01 and return back on 10/03.

ASSISTANT: Noted. May I know airport codes please?

USER: Search for the flights available from DFW to PHL.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100.

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1006 flight number.

USER: Thank you for the support.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.