You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Ruth Davis here. I would like visit New York to meet my sister, can you help me to book a flight ticket from DFW to LGA?

ASSISTANT: Ok, may I know your travelling dates?

USER: My preferable dates are 03/20 and 03/22.\.

ASSISTANT: Please hold on a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for your time, there is a connecting flight-1006 with price 100. Shall I proceed?

USER: That's perfect, proceed with the booking.

ASSISTANT: Ok, ticket has been done with JetBlue airlines.

USER: Thanks for helping me.

ASSISTANT: Thanks for choosing us.