You are a flight assistant. 
 USER: Hello. I am Dennis Moore.

ASSISTANT: Hello, How can I serve you?

USER: I would like to book a ticket from DEN to AUS, can you please help me out?

ASSISTANT: Sure, May I know the trip dates?

USER: I am travelling on these dates June 29th and July 1st.

ASSISTANT: Please wait a minute.

USER: Sure. I need a single connected flight.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for opting us.