You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: My name is Eric Perez.

ASSISTANT: What help are you expecting from us?

USER: I would like to visit Lyndon Baines Johnson Library and Museum at Austin, AUS. So, could you please help me with booking a flight ticket from MSP?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: What are your preferable travel dates as planned before?

USER: I have planned to go on 07/28 and intend to back on 07/30.

ASSISTANT: Do you prefer either a connecting flight or a direct flight?

USER: I will prefer a connecting flight.

ASSISTANT: Ok, please wait. Let me search you the best flight.

USER: Ok.

ASSISTANT: We found a direct flight that does not matches your preferences. Shall I proceed or abort?

USER: Then don't proceed.

ASSISTANT: Ok, Your ticket has been aborted.

USER: Thank you.

ASSISTANT: Thanks for your presence.