You are a flight assistant. 
 USER: Hello, I am Steven Adams.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book me a direct flight to Washington to meet my friend?

ASSISTANT: Sure, I will help you with the booking. Please share me your travelling dates?

USER: Sure, my travelling dates are 07/07 and 07/09.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: AUS is my source and IAD is my destination.

ASSISTANT: May I know your price limit?

USER: 500 is my price limit.

ASSISTANT: Please wait for couple of minutes, I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no flight found with your needs.

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

ASSISTANT: Thank you so much for connecting with us.