You are a flight assistant. 
 USER: Hello, Linda Brown is my name. I am very much excited to go to Dallas & Fort Worth to meet my Facebook friend for the first time.

ASSISTANT: Hello, how may I best oblige you today?

USER: So, please check flights under any cost, it can be 5000 also no problem.

ASSISTANT: Sure, we are here to make your journey comfortable. When are you planning to travel your journey?

USER: Thank you. My travelling dates are from 10/19 to 10/21.

ASSISTANT: Please share your travelling take off and landing points?

USER: My airport codes are from NY-JFK to TX-DFW.

ASSISTANT: Thank you for providing your details, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I regret that there are no flights found with your given dates.

USER: That's not a problem. Thanks for your kind information.

ASSISTANT: Thank you for availing with us.