You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I would like to meet my family at Austin, can you please help me in booking a ticket?

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your preferable dates of travelling?

USER: Sure, my planned travel dates are on June 19 and June 21.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: My source and destination airport codes are MCO and AUS.

ASSISTANT: May I know your name to book the flight ticket?

USER: My name is Steven Hall.

ASSISTANT: Any connection limit do you have?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I would like to return in the evening.

ASSISTANT: Please wait a moment to check the flights meanwhile if you have any other requirements please let me know.

USER: No, thank you for asking.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your requested preferences.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us, hope you have a great day.