You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Miller here.

ASSISTANT: How can I aid you?

USER: I want to reserve my ticket from IAD to MSP, can you please help me to book a ticket?

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

USER: Sure, my planned dates of journey are from Mar, 23 to Mar, 25.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a depart time at afternoon.

ASSISTANT: May I know your connection limit for this journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 100. Shall I proceed in booking with this flight?

USER: Ok, please book it.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 102.

USER: Thank you for your service in booking my ticket.

ASSISTANT: Your flight number is 1023 and Airlines is AA. Thank you.

USER: Thank you.