You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this a flight booking agency services?

ASSISTANT: Yes, how may I assist you for this moment?

USER: My brother is planning to visit Charlotte NC-CLT, he did not know how to book the flight ticket . Can you please help him to book the flight ticket from Dallas & Fort Worth?

ASSISTANT: Sure, I will help you with this.

USER: Thank you for your positive response.

ASSISTANT: Can you please help me to share your preferable dates of journey that on which dates your planning to travel?

USER: He want to stay in Charlotte on 07/23. So his starting date of journey is 07/22 and the return date of journey is 07/24.

ASSISTANT: Ok, could you please mention your origin airport code to reach your destination?

USER: My native place is Dallas & Fort Worth, so the origin airport code is form TX-DFW.

ASSISTANT: Please wait for a moment to check for the availability of a ticket and will get back to you.

USER: Sure.

ASSISTANT: I have found a flight ticket with the connections limit 0 of fare 100 as per your requirement, shall I proceed with this ticket booking?

USER: No, I want the flight with 1 connection limit.

ASSISTANT: Sorry, there is no flight with the connections limit 1.

USER: My name is Catherine Perez.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.