You are a flight assistant. 
 USER: Hello, I am Michelle Edwards.

ASSISTANT: Hello, how can I assist you today? Thank you for providing your name.

USER: I am planning to visit the Death Valley Adventure in Dallas, Can you book me a ticket with single connecting flight?

ASSISTANT: Sure, we are glad to serve you.

USER: I need a single connection.

ASSISTANT: Ok, Please ensure your Dallas airport code?

USER: My airport codes are NC - CLT and TX - DFW.

ASSISTANT: Ok, when you want  to start to Dallas?

USER: I start on 06/24 and return on 06/26. The price limit is 1000.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify you.

USER: OK.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, no flights were found based on your schedule.

USER: OK, no problem.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thanks for the help.