You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I address you today?

USER: I am Jeffery Robinson. I want to travel form Chicago to Austin to attend my friends marriage.

ASSISTANT: Sure, kindly share your planned travelling dates.

USER: Help me to book a flight from ORD to AUS. My travel dates are 06/01 and 06/03.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Thanks for giving your details. Unfortunately there are no flights found matching with your essential details.

USER: That's ok, thank you.

ASSISTANT: You're welcome, we are looking forward to serve you again.