You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am planning to celebrate my birthday with my friends. Can you help me to do the reservation?

ASSISTANT: Sure, we are here to help you. May I know your journey details?

USER: I like to travel from ORD to DFW. Travelling dates are 07/04 and 07/06. I need a direct flight with the price of 1000.

ASSISTANT: Sorry to say,  there is no flight with your preferences.

USER: No issue. Thank you for the confirmation.

ASSISTANT: May I know your name please?

USER: Joseph Carter.

ASSISTANT: Thank you for availing us.