You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I am planning to book a ticket from PHL to MSP to attend seminar, can you help me in booking?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: I am departing on June 25 and return on June 27.

ASSISTANT: Do you need any break?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I want to depart in evening time.

ASSISTANT: May I know your name?

USER: My name is Pamela Garcia.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Please proceed for booking.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for picking us.