You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to travel from HOU to ATL, can you please help me in flight booking?

ASSISTANT: Sure, please mention your connection limit?

USER: I want a flight with one connection.

ASSISTANT: Please share me your planned journey dates?

USER: I want to fly on Apr 09, return on Apr 11.

ASSISTANT: Is there any other requirement related to booking?

USER: My depart time should be evening.

ASSISTANT: May I know your good name?

USER: My name is Linda Mitchell.

ASSISTANT: I found a connecting flight 1020 of airline Delta, fare is 300 and class is economy. Shall I proceed with booking?

USER: May I know the depart time?

ASSISTANT: Flight will depart on 16:00 hours and return timing is 21:00 hours.

USER: I want to depart on the evening time.

ASSISTANT: Sorry, your depart flight time is 21:00 hours and return flight timing is 16:00 hours.

USER: Ok, proceed to booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for visiting us, have a nice journey.