You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I am Gregory Thompson.

ASSISTANT: Nice to meet you Gregory Thompson.

USER: I need to visit Minneapolis to meet my friend so please help me with flight ticket from AUS to MSP.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Thank you. I have planned my travel dates as Nov 21 and Nov 23.

ASSISTANT: Ok, do you have any specific timings of your journey.

USER: Yes, I would like to return in evening time so please check with that.

ASSISTANT: Are you looking for any specific airlines?

USER: No, I am ok with any airlines.

ASSISTANT: Ok, please wait a moment.

USER: Sure but please check for single connecting flight.

ASSISTANT: Sorry Gregory Thompson, no evening flight is available to you on your dates.

USER: Oh! It is sad  to hear. Anyway, thank you for your time.

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