You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Anderson.

ASSISTANT: How may I aid you today?

USER: I would like to attend my friend marriage at PHL, can you please help me to book a flight ticket from MSP?

ASSISTANT: Sure, let me know your travel dates please?

USER: Sure, my travelling dates are Oct 11 and Oct 13.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I would like to return in the evening time.

ASSISTANT: May I know your connection limit?

USER: I need a single connection flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Ok, is there any class preference?

USER: I am comfortable to travel in any class.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

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

ASSISTANT: Thanks for opting us.