You are a flight assistant. 
 USER: Hello. Catherine Smith here.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Please look for a flight on 02/24 and 02/26, can you reserve a seat for me?

ASSISTANT: Sure, Could you please provide me your price and connection limits?

USER: I am looking for the price within 500. And also I need a single connection.

ASSISTANT: Ok, may I know your airport codes?

USER: I am planning to move from DFW to ORD.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. we found a flight with 2 connections. Sorry for the inconvenience.

USER: Ok, don't go with that. Thank you for your response.

ASSISTANT: Thank you for contacting us. have a good day.