You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Rachel Robinson is here. Can you please reserve my flight ticket from AUS to PHL?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I would like to depart on Aug 21st and return on Aug 23rd.

ASSISTANT: Do you need a connecting flight?

USER: I need a direct flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: I found an economy class in Southwest airlines with fare 200 and it is a direct flight. Can I book your ticket?

USER: You can book it.

ASSISTANT: Ok, your booking is confirmed with flight number 1028.

USER: Thank you.

ASSISTANT: Thank you for reaching us.