You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to book a flight from LAS to DFW?

ASSISTANT: May I know your itinerary dates please?

USER: My planned dates are Nov 29 and Dec 01.

ASSISTANT:  May I know your preferable journey timings?

USER: I am fine at any time.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I would like to prefer connecting flight.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: Sure, I am Susan Lopez.

ASSISTANT: There is a connecting flight on Delta airlines, shall I book it?

USER: Proceed with booking.

ASSISTANT: Ok, booking is done with the flight-1001.

USER: Thank you.

ASSISTANT: Thanks for choosing us.