You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Sarah Lewis, planning to travel from IAD on 11/22.

ASSISTANT: Ok, do you have any return journey plane?

USER: I am planning to return from ORD on 11/24.

ASSISTANT: Wait a moment.

USER: Ok.

ASSISTANT: I found a connecting flight-1015 on Southwest airline. Shall I book it?

USER: Proceed with booking.

ASSISTANT: Ok, booking is done with your request.

USER: Thank you.

ASSISTANT: Welcome, have a safe flight.