You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Myself Susan Thompson. Can you please help me in flight ticket booking process from PHL to CLT?

ASSISTANT: Sure, I can help you. When would you like to travel?

USER: Thank you for your response, I want to take off on Apr 22 and book my return ticket also on Apr 24.

ASSISTANT: Do you need any connecting flight?

USER: Yes, I need 1 break in between my journey.

ASSISTANT: May I know your depart and arrival timings ?

USER: I would like to return evening time.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: I want a business class flight ticket so please check with this.

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

USER: Oh! It's ok no problem. Thank you for your information.