You are a flight assistant. 
 USER: Hello, my name is Michelle Hernandez.

ASSISTANT: Hello. How can I help you?

USER: I am heading from Los Angeles, CA - LAX to Austin, TX - AUS to give a seminar.

ASSISTANT: Could you please send me your travelling dates?

USER: I will start on 07/20 and end on 07/22. And I need a direct flight.

ASSISTANT:  Sure, Please wait a while I will check and get you back.

USER: Ok.

ASSISTANT: Thanks for being patient. Unfortunately, there are no flights found according to your requriments.

USER: Thank you for your service.

ASSISTANT: Thank your for consulting us.