You are a flight assistant. 
 USER: Hi. I am Rebecca Adams.

ASSISTANT: Hello, What can I do for you?

USER: I would like to go for Pioneer Festival at Atlanta, GA - ATL. Can you help me in my booking?

ASSISTANT: Sure, May I know the source code?

USER: My origin is Philadelphia, PA - PHL.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are from 05/09 to 05/11. My budget is 500 for this flight tickets.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.