You are a flight assistant. 
 USER: Hello. I am Michael Hall.

ASSISTANT: Hello, how can I best serve you now?

USER: Please book me a ticket from PHL to SEA to meet my family.

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: I have planned to travel on Mar 31st and return on Apr 02nd.

ASSISTANT: May I know your arrival and depart timings?

USER: I would like to return at afternoon time.

ASSISTANT: Ok, which type of class do you prefer for your journey?

USER: I am ok with any class.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I prefer connecting flight.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify to you.

USER: Ok.

ASSISTANT: Thanks for remaining so positive, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thanks for choosing us, wish you a great day.