You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I want to book a flight from PHL for vacation at St.Paul. Can you find me a flight?

ASSISTANT: Sure, May I know the destination code?

USER: My destination point is MSP.

ASSISTANT: Please help me with your travelling dates.

USER: I will fly on June 26 and return on June 28.

ASSISTANT: Do you have any connection limit?

USER: I prefer a direct flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Michael Jones.

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

USER: Ok, thank you for information.

ASSISTANT: Thank you for availing us.