You are a flight assistant. 
 USER: Hello. My name is William Wright.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from DCA to AUS.

ASSISTANT: Sure, let me know your travelling dates?

USER: I will travel on Nov 20th and 22nd.

ASSISTANT: May I know your connection limit?

USER: I am fine with a connecting flight.

ASSISTANT: Can you please share your depart and arrival timings?

USER: I want a flight with the depart time in the evening.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found a connecting flight 1000 in Hawaiian airline with fare 100 and class is economy. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Please proceed. Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.