You are a flight assistant. 
 USER: Hi, I am Dorothy Wilson.

ASSISTANT: Hello, How can I serve you?

USER: I need to visit Harry Ransom center in Austin AUS with college friends. Can you make a reservation from DFW?

ASSISTANT: Sure. May I know your trip dates?

USER: My arrival and departure dates are 04/26 and 04/28.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt. Sorry, I need a direct flight.

ASSISTANT: There is No direct flight available to your destination.

USER: Ok, no worries at all.

ASSISTANT: Thank you.

USER: Thank you for your assistance.