You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please book a flight ticket from AUS to PHL as I need to attend a seminar in my college.

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are Jan 15 and Jan 17.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight. And I want to return in the afternoon.

ASSISTANT: Please share me your name.

USER: My name is Elizabeth Smith.

ASSISTANT: Flight-1026 is available with Delta airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.