You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I would like to visit at Austin for meet my parents, can you help me to book a flight ticket from ORD to AUS?

ASSISTANT: Sure, I will help you. May I know your travel dates?

USER: My travel dates are Oct 25 and Oct 27.

ASSISTANT: May I know your name?

USER: I am Eric Thomas.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you need any break in between your journey?

USER: Yes, I prefer connecting flight for this trip.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, we did not find any flights for you.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.