You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to book a flight ticket from DFW to PHX. Can you make a reservation for me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Thank you. My planned trip dates are on Dec 29 and return on Dec 31.

ASSISTANT: Ok, please let me know  your  preferable airlines.

USER: No, but I want return in the morning time.

ASSISTANT: Do you  have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Can I have your good name please?

USER: Ok, I am Sarah Williams.

ASSISTANT: UA airlines running a flight in your  route with connection 1 and the ticket fare is 300 in business class. Shall I proceed with booking?

USER: Please proceed with the ticket booking.

ASSISTANT: Ok, your  ticket booking has done and the flight number is 1023.

USER: Thank you for your great help.

ASSISTANT: Thank you for choosing us, have a great  journey.