You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I amend you today?

USER: I am William Collins. I am planning to go for a multi car 50 mile canyon road test drive of my Lamborghini car in Austin.

ASSISTANT: Ok.

USER: Could you please help me in booking?

ASSISTANT: Sure, we are mirthful to assist you. Kindly, provide me your airport codes.

USER: My source code is Orlando FL-MCO and destination code is Austin TX-AUS.

ASSISTANT: Help me with your dates of trip.

USER: My arrival and departure dates are 08/19 and 08/17.

ASSISTANT: Thanks for sharing your details. There is no flight found found to your route on specified dates of your travel.

USER: Ok, no worries at all.

ASSISTANT: Thank you for opting us.

USER: Thank you for your assistance.