You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Donna parker. I want to book a flight ticket.

ASSISTANT: Thanks for giving your name. Sure, to proceed further we need your journey points and journey dates?

USER: I want took a ticket from Denver CO-DEN to San Francisco CA-SFO. I want to depart on Jan/12 and return on Jan/14.

ASSISTANT: OK, please wait for a moment . I will check the availability and return back.

USER: OK.

ASSISTANT: Thank you for your patience, we are glad to say that one flight is found. Do you need any other requirements?

USER: Yes, I need price limit 500 with one connection.

ASSISTANT: OK,. Shall I proceed for booking?

USER:  you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed with Hawaiian airline and  the flight number is 1029.

USER: OK. Thank you.

ASSISTANT: Thank you for contacting us, have a great day.