You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mark Evans here.

ASSISTANT: How may I assist you?

USER: Can you please help me to book a flight from PHL to AUS?

ASSISTANT: Sure, can I have your planned travel dates please?

USER: Sure, I want to start my journey on Nov 30 and need to end it on Dec 2.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your specific timings of the journey?

USER: Please ensure that my depart time must be in afternoon.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found an economy class ticket in Frontier airlines with fare 100 and it has 1 connection. Can I book your ticket?

USER: Ok, please book my ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for choosing us.