You are a flight assistant. 
 USER: Hello,. I am Margaret Roberts.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit Austin live music crawl in Austin, TX - AUS. Can you avail me to book a direct flight?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: I want to fly on 05/16 and recur on 05/18.

ASSISTANT: May I know your price limit?

USER: I can afford up to 200.

ASSISTANT: Please also share me your source airport code?

USER: I want to board from Washington DC - DCA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey details.

USER: Ok, no issues. Thanks for your response.

ASSISTANT: Thank you for visiting us, we hope see you again.