You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to travel from DEN to AUS. Can you please help me in ticket booking?

ASSISTANT: Sure, can I have your travel dates please?

USER: My travel dates are from 03/13 to 03/15.

ASSISTANT: May I know your good name please?

USER: Myself Elizabeth Moore.

ASSISTANT: Can you share your connection limit?

USER: I want a single connecting flight.

ASSISTANT: Do you have any more specifications to be met?

USER: I want to book my ticket in economy class.

ASSISTANT: Sorry, there is no flight on your required route.

USER: That's fine, thank you.

ASSISTANT: Thank you for reaching us.