You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicole Williams.

ASSISTANT: How may I aid you?

USER: Can you please help me in booking a flight ticket from ORD to MSP to attend a film festival?

ASSISTANT:  If you provide your planned departure and return dates of travelling then it is easy to find a exact flight for you.

USER: Ok, I am planning to depart on Feb 20 and return on Feb 22.

ASSISTANT: Do you have any class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: Sure, can you please share your connection preferences?

USER: I prefer a flight having single connection.

ASSISTANT:  Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: There is a direct flight-1021 with price 200, shall I confirm it?

USER: Yes, you can confirm.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thank you for your service.

ASSISTANT: Welcome.