You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for today?

USER: I have an important meet at Philadelphia, please help me by booking a connecting flight with price within 200.

ASSISTANT: Sure, we are happy to help you. Can you please assign your journey dates?

USER: My travelling dates are from 08/25 to 08/27.

ASSISTANT: Ok, may I know your airport codes?

USER: My origin airport is CO- DEN and dest airport is PA- PHL.

ASSISTANT: To proceed for booking can you please share your name?

USER: I am Sharon King.

ASSISTANT: Thanks for your journey details, please hold on.

USER: Ok.

ASSISTANT: Unfortunately, we did not find any flights regarding on your price limit.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us, have a nice day.