You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Nelson.

ASSISTANT: How can I assist you?

USER: Would you please book a flight from EWR to AUS?

ASSISTANT: Sure, please share your travelling dates.

USER: Sure, my travelling dates are Dec 1 - Dec 3.

ASSISTANT: Do you have connection preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Please share your class preference.

USER: I do not have any class preference.

ASSISTANT: Do you have any other preferences?

USER: Yes, I need a flight having depart time on evening and return time on morning.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting,  We have a business class connecting flight operated by Delta Airlines with a fare of 800 that departs in the afternoon. Is it ok for you?

USER: Ok, please proceed with the booking.

ASSISTANT: Your ticket is booked with flight number 1024 which departs at 23:00PM and returns at 9:00AM.

USER: I need depart time on evening please check with it. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.