You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you expect from our agency?

USER: Can you please assist me for booking from MSP to AUS?

ASSISTANT: Sure, I am happy to guide you with that. Share your preferable journey dates?

USER: My trip dates are on Aug 26 and 28.

ASSISTANT: Please let me know, on which name do you want to book the ticket?

USER: My name is Samantha Perez.

ASSISTANT: Ok, can I know your comfortable timings to depart and return?

USER: No, I am fine with any timings.

ASSISTANT: Ok, please tell me your other preferences if any.

USER: My depart time is afternoon.

ASSISTANT: Sorry, there are no flights available which were departing in the afternoon time.

USER:  Ok, thank you.

ASSISTANT: Most welcome. Thank you for opting us.