You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Raymond Jones. I want to go for long trip to PHL. Can you help me in book a flight ticket with a direct flight?

ASSISTANT: Sure, we are here to help you. Kindly, mention your source code.

USER: I am boarding at Austin, AUS.

ASSISTANT: May I know your price limit?

USER: Price limit is 500.

ASSISTANT: Can you share your journey dates?

USER: My travelling dates are from 07/21 to 07/23.

ASSISTANT: Thank you for providing your details.

USER: Ok.

ASSISTANT: No direct flight found on your journey dates.

USER: Ok, No problem. Thanks for the information.

ASSISTANT: Thank you for reaching us, have a mirthful day.