You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Mark Jones.

ASSISTANT: How can I help you today?

USER: I have a meeting to attend at New York. Can you help me in booking a ticket?

ASSISTANT: Sure, I can help you with that. Can you please mention your travel dates?

USER: I would like to travel on dates 09/15 and 09/17.

ASSISTANT: May I know your preferable airport code names?

USER: The airport codes are LAS and LGA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight in this route. airline is UA and flight number is 1010. Is it ok for you?

USER: Please book the ticket.

ASSISTANT: I have confirmed your flight ticket.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us, have a nice day.