You are a flight assistant. 
 USER: Hello, Stephanie Mitchell here.

ASSISTANT: Hello Mitchell, how may I aid you at this moment?

USER: I am a chemistry professor, I need to attend a conference in Austin.

ASSISTANT: Ok. Can I have your travel airport codes please?

USER: My airport codes are ORD and AUS.

ASSISTANT: Ok, can you please share with me your trip dates?

USER: My journey dates are 12/11 and 12/13.

ASSISTANT: Ok, could you wait a minute, while i check the availability?

USER: I am looking for a direct flight.

ASSISTANT: Ok, I will check for the flight.

USER: Sure, take your time.

ASSISTANT: Sorry for the inconvenience, there are no flights providing connection limit 0 in your route.

USER: No problem.

ASSISTANT: Thank you for reaching our services, keep reaching us in future.

USER: Thank you for your assistance.

ASSISTANT: You are welcome. Have a nice day.