You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I want to book a flight ticket on 08/27 and return on 08/29, can you book me a flight ticket please?

ASSISTANT: Sure, I am gleeful to assist you. How much you can pay for this ticket?

USER: I can pay up to 200.

ASSISTANT: Which places would you like to board and land?

USER: My airport locations are PA-PHL and MN-MSP.

ASSISTANT: Do you need any stopover in my journey?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your good name please?

USER: My name is Mary Johnson.

ASSISTANT: Thanks for sharing your information. Sorry to notify that there are no flights found wit your requested data.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing with us.