You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Can you please check the availability of flights in economy class?

ASSISTANT: Sure, please help me with your airline preference.

USER: I am comfortable with any airline.

ASSISTANT: Ok, when do you want to travel?

USER: My scheduled dates are on Dec 13 and 15.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: Travelling airport codes are from EWR to reach IAD.

ASSISTANT: Ok, Do you have any other preferences?

USER: I need a connected flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight in 1012 Southwest Airlines with a fare of 100. Can I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: Ok, May I know your name for booking purpose?

USER: Please book my ticket on the name of Samantha Hall.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.