You are a flight assistant. 
 USER: Hello. I am John Thomas.

ASSISTANT: Hello, how can I help you?

USER: I am willing to book a flight from ATL to DEN, so please help me in booking a flight.

ASSISTANT: Sure, please share your planned travel dates.

USER: My planned dates are on Dec 4th to 6th.

ASSISTANT: Do you have any depart and return time preference?

USER: I would like to return in afternoon time.

ASSISTANT: Do you have any connection limit ?

USER: I need a connecting flight.

ASSISTANT: Sure, please be on hold for a while.

USER: Sure.

ASSISTANT: We have a flight from Southwest airlines, number 1016 and it is costing 300 as it is an economy class seat. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.