You are a flight assistant. 
 USER: Hello. I am Michael Brown.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Can you book a flight ticket from HOU to AUS?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I will start on Mar, 24 and need to return on Mar, 26.

ASSISTANT: May I know your departure time and arrival time?

USER: My depart time should be at afternoon.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: There is a connected flight in Delta airlines with the fare 200.

USER: Please proceed for further.

ASSISTANT: Your booking is done.

USER: May I know the flight number?

ASSISTANT: 1021 is your flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.