You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello , How can I assist you ?

USER: I just want to book a flight ticket.

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

USER: My name is Elizabeth Davis.

ASSISTANT: OK Elizabeth Davis ,Could you please provide me travelling information .

USER: I want to book a ticket from Los Angeles, CA-LAX to Boston, MA-BOS.

ASSISTANT: OK , Please provide me travelling dates ?

USER: My departure date is Mar/6 , Return date is Mar/8 with price limit 5000.

ASSISTANT: Please be in online, I will check and return back .

USER: OK.

ASSISTANT: Thank you for being online, Based on your required dates flights are available. You need any other requirements ?

USER: Connections limit is 1.

ASSISTANT: Flights are available on your requirements . Can I book your flight ticket ?

USER: Yes.

ASSISTANT: OK. Your ticket has been booked .

USER: OK, Thank you.

ASSISTANT: Thank you , Have a nice day .