You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I planned to meet my friend in AUS, can you please help me to book a flight ticket from LAS?

ASSISTANT: Sure, I'm glad to help you. May I know your planned travel dates please?

USER: I prefer to travel on Mar 28 and Mar 30.

ASSISTANT: Do you need break in between your journey?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: No.

ASSISTANT: May I know your good name please?

USER: I am Donna Martinez.

ASSISTANT: UA is providing a single connected flight with ticket fare of 300, shall I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1003, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.