You are a flight assistant. 
 USER: Hello, Karen Johnson here.

ASSISTANT: Hello. How may I help you?

USER: I have planned to visit my grandparents in Charlotte, so could you please help me to book a ticket from EWR to CLT?

ASSISTANT: Sure, may I know your  travelling dates?

USER: My preferable dates are from 08/21 to 08/23.

ASSISTANT: Ok, wait for a minute.

USER: Make sure that flight should contain 1 connection and ticket price is less than or equal to 200. Can you please check for it?

ASSISTANT: Yes, I found a flight-1019 with AA airlines, yes your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.