You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you at present?

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

ASSISTANT: Sure, can I know your good name please?

USER: I am Lisa Roberts.

ASSISTANT:  When you are willing to travel?

USER: My trip dates are Jan 10 to 12.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I want to return in morning time.

ASSISTANT: We found a connecting flight 1002 in Frontier airlines at the price of 700 with business class. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.