You are a flight assistant. 
 USER: Hi,. I am Sarah Hall.

ASSISTANT: Hello, how may I aid you today?

USER: I need go for a round trip to Detroit, DTW to enjoy in beer festival with my friends, Can you please help me in booking my ticket?

ASSISTANT: Sure, can you please aid me with your journey dates?

USER: My schedule trip dates are 09/18 - 09/20.

ASSISTANT: From where would you like to start your journey?

USER: It is a round trip.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight with an airline Hawaiian of flight 1000, shall I proceed with the booking?

USER: Please, proceed with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.