You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I be at your service to day?

USER: I want to celebrate Arts and Crafts festivals at Houston, TX - IAH. Can you book a flight ticket from Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, we will help you in booking. How many connections do you need in between journey.

USER: I need a direct flight.

ASSISTANT: Ok, do you have any restriction in price limit?

USER: My price limit is 200.

ASSISTANT: Can you please let me know your preferred dates of travelling?

USER: My preferred dates are 09/07 - 09/09.

ASSISTANT: Thank you for providing necessary details, wait for a while, I will check and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any direct flight on your particular days of travel.

USER: Ok, thanks for the help.

ASSISTANT: For documentation purpose, may I know your name please?

USER: I am Jacob Perez.

ASSISTANT: Thank you for availing us. Have a great day.