You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need your help to book a ticket from MCO to DCA.

ASSISTANT: Sure, may I know your name please?

USER: My name is Deborah Adams.

ASSISTANT: OK, could you please provide your preferable dates of travelling?

USER: My departure date is 06/26 and return date is 06/28.

ASSISTANT: Is there any additional restrictions do you have?

USER: Price limit should not exceed 500 and connection limit should be zero.

ASSISTANT: OK, I have found a flight for you, but it is with 1 connection. Shall I proceed for booking?

USER: No, please don't proceed.

ASSISTANT: Sorry Adams, unfortunately there is no flight with 0 connections.

USER: Thank you for the information.

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