You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you please help me with booking a flight ticket from DCA to LAX?

ASSISTANT: Sure, may I know on which dates you are planning to make your journey?

USER: I want to start my journey on Sept 29 and return back on Oct 01.

ASSISTANT: Do you have any restrictions on connection limit?

USER: Yes, I need a flight with connection limit-1.

ASSISTANT: Is there any class preference in your journey?

USER: Yes, I always prefer economy class.

ASSISTANT: May I know your name please?

USER: My name is Ryan Young.

ASSISTANT: Do you have any other requirements?

USER: No, thank's for asking.

ASSISTANT: We found a connecting flight with Southwest airlines, flight number 1000, and the price is 100 in economy class. Shall I proceed?

USER: Yes, please proceed with that flight ticket booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you very much in reserving my ticket .

ASSISTANT: Thank you for approaching us.