You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Mary Rodriguez. I need to book a ticket to meet my friend on 02/21. please check wither it is a direct flight or not.

ASSISTANT: Sure, please provide me your return date.

USER: I intend to return on 02/23.

ASSISTANT: May I know your starting point and ending point?

USER: My airport codes are IAH and JFK.

ASSISTANT: Sorry to inform, there is no direct flight found in our data base.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us help.