You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Brown.

ASSISTANT: How can I assist you today?

USER: I have planned for the luncheons at New York, NY-LGA from Las Vegas, NV-LAS. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you out, may I know your travelling dates for booking a ticket?

USER: I want to travel on 07/14 and return on 07/16.

ASSISTANT: Please help me with your lay by's.

USER: I need a break in between the journey.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: There is a Southwest 1003 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed on name of Elizabeth Brown.

USER: Thank you for your service.

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