You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best oblige you for the day?

USER: Will you please reserve a flight ticket with name Jack Allen as I want to participate in 5K run event which is organized by my brother at Las Vegas?

ASSISTANT: Sure, we are here to assist you for the day. To participate in 5k run when would you like to start your journey?

USER: I would like to start my journey on 01/19 as event is going to held on 01/20.

ASSISTANT: When will be your return date?

USER: 01/21 will be my return date.

ASSISTANT: It will be helpful to me if you please provide your take off and landing airport codes to proceed with booking?

USER: I need to land at Las Vegas, NV - LAS from New York, NY - LGA.

ASSISTANT: Do you want to take any lay by with in the journey?

USER: Yes, I need a lay by.

ASSISTANT: Thank you for providing you details, please wait for a moment, I will find a best flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your valuable time, we are glad to inform you that we found a flight 1024 in Southwest airline the price is 300 with one flag station.

USER: Southwest airline is best flight, please proceed for booking with this airline.

ASSISTANT: Your ticket has been reserved on the given name.

USER: Thanks for your time in booking my ticket.

ASSISTANT: Thank you for reaching in booking your flight ticket.