You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to attend medical camp in Austin, can you please make a reservation from ORD to AUS?

ASSISTANT: Please mention your name.

USER: Eric Walker is my name.

ASSISTANT: May I know your travel dates?

USER: My journey start from Chicago on Nov 15th, and arrival on Nov 17th.

ASSISTANT: Do you have any preferences?

USER: I need a stopover in between journey. I would like to travel in normal-cost airlines.

ASSISTANT:  Do you have any other preferences?

USER: No.

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

USER: Ok, no problem, I will choose another source to reach my destination. Thank you.

ASSISTANT: Thank you for reaching us.