You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am planning to visit Lady Bird Lake at Austin, could you please help me with booking a flight ticket from ORD to AUS?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I would like to depart on May 19th and return on May 21st.

ASSISTANT: Do you have any airline preference?

USER: I would prefer not to fly a low- cost airline.

ASSISTANT: Is there any connection limit?

USER: I need a flight with single stopover.

ASSISTANT: May I know your name please to proceed further?

USER: Please make the reservation under the name Donna Nelson.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I fund a ticket for you with price of 200, flight number is 1016 in economy class and connection is 1 with American airline.Can I proceed the booking?

USER: Yes, please confirm the booking.

ASSISTANT: I confirmed your ticket successfully. The depart time is 7:00AM.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us, have a safe journey.