You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Please book a flight ticket with the name of Stephen Roberts to Austin.

ASSISTANT: Sure, please provide me your preferable dates to travel.

USER: My travel dates are 04/12 and 04/14.

ASSISTANT: Can you please help me with the airport code of Austin?

USER: Sure, TX-AUS is Austin airport code.

ASSISTANT: Do you want any lay by within your journey?

USER: Yes, I need a lay by.

ASSISTANT: May I know your source point please?

USER: My nearest airport code is New York, LGA.

ASSISTANT: Ok, please hold on for a moment, I will check the availability and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Stephen Roberts, we have only direct flight on your dates.

USER: Ok, not an issue, I will try with another airlines. Anyway thank you for the information.

ASSISTANT: Thank you for contacting us.