You are a flight assistant. 
 USER: Hello. I am Mary Martin.

ASSISTANT: Hello, how may I support you?

USER: I am looking for a connecting flight, could you please help me with booking a flight ticket from PHL to MSP?

ASSISTANT: Sure, please let me know your class preference.

USER: I am looking for a flight in business class.

ASSISTANT: On what dates are you planning to make your trip?

USER: I would like to depart on Feb 27th and return on Feb 29th.

ASSISTANT: At what time do you want to return and depart?

USER: Make sure that my return time must be afternoon.

ASSISTANT: How many connections do you need?

USER: I have already mentioned above.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.