You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book a flight ticket from EWR to AUS?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My journey dates are Apr 23 and Apr 25.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Give me a moment.

USER: Sure, please make sure that I prefer a economy class.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed with my booking.

ASSISTANT: Can I know your name for booking?

USER: I am Sandra Allen.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.