You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from IAD to LAS?

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: My travel dates are June 03 and June 05.

ASSISTANT: Do you have any break in between journey?

USER: Yes, I prefer lay by in between my journey.

ASSISTANT: Is there any other specification for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Linda Anderson.

ASSISTANT: We found a connecting flight in Southwest airline with a fare of 100 which departs at 8:00 and return at 16:00. Shall I proceed for booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1016.

USER: Thank you.

ASSISTANT: Thank you for choosing us.