You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Steven Mitchell.

ASSISTANT: Thanks for giving your name.

USER: I want to attend a business meeting so I want to travel from PHL to DFW. My journey dates are from 11/22 to 11/24. Make sure that price limit should not exceed 500 and connection limit must be 1.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry there are no flights found on your journey dates.

USER: Ok, thank you for quick response.

ASSISTANT: Thanks for connecting us, have a great day.