You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit University of Texas at AUS with my friend, can you avail me a flight ticket?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: My journey dates are Feb 26 and Feb 28.

ASSISTANT: May I know from which airport you want to depart?

USER: I will departure from DTW to reach my destination.

ASSISTANT: Do you like to travel on connecting flight?

USER: I need a connecting flight.

ASSISTANT: Please mention which airline you prefer to travel?

USER: I would like to prefer normal-cost airline.

ASSISTANT: Do you have any other preferences related to booking?

USER: No.

ASSISTANT: While I check for the flight availability, can you please provide me your name?

USER: Sure, Donald Perez here.

ASSISTANT: Thank you for waiting, sorry to inform you that there is no flight available on your given journey dates.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: Thank you for reaching us, we hope see you again.