You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Myself Donna Adams. I need to travel PHL and DTW, can you please reserve flight ticket?

ASSISTANT: Sure, when would you like to depart and return?

USER: My travelling dates are Nov,12 and Nov,14.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your price limit?

USER: My price limit is 200.

ASSISTANT: Do you have any class preference?

USER: I need a normal-cost flight.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: That's ok. thank for searching the flights.

ASSISTANT: Thank you for opting us.