You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Lisa Wilson here. I need to book a ticket from ORD to MSP, can you help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My return time is afternoon. My trip dates are June 24 to 26.

ASSISTANT: Ok, may I know your class preference?

USER: I need economy class.

ASSISTANT: The economy class with flight number 1023 of AA airline is available having fare as 200 and connection as 1, is it ok for you?

USER: Ok, please proceed with reservation.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you.