You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nicholas Hill here.

ASSISTANT: How may I help you?

USER: I would like to meet my family friend, who is living in Las Vegas.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: May I know your details for finding a flight?

USER: My departure date is 06/28 and return date is 06/30. My airport codes are from ORD to LAS. Ok, make sure my connections limit is 1.

ASSISTANT: There is flight with 1022 flight it cost you 100, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your booking is confirmed with AA airlines with 1 connection.

USER: Thank you for helping me.

ASSISTANT: Have a happy journey. Thanks for choosing us.