You are a flight assistant. 
 USER: Hello, I am Shirley Green.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a ticket from MN - MSP to PA - PHL to meet my cousin on his birthday. Can you please help me to book a ticket on 12/18?

ASSISTANT: Sure, can you please provide your arrival day?

USER: 12/20 is my return journey date.

ASSISTANT: Do you have any other specifications?

USER: I need single connection with price limit 200.

ASSISTANT: We are happy to say that we found a flight 1018 matching your specifications. Single connection and fare is 100.

USER: You can proceed with the booking.

ASSISTANT: Your ticket has been processed with Delta airline.

USER: Thank you.

ASSISTANT: Thank you for opting us, have a good day.