You are a flight assistant. 
 USER: Hello, I am Deborah Hernandez.

ASSISTANT: Hello. How may I help you out?

USER: I need to book a direct flight for my journey to DFW from CLT in the month of June. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates are 06/13 and 06/15.

ASSISTANT: Sorry, there are no flights found.

USER: Not a problem, anyway thank you for the help.

ASSISTANT: Thank you for reaching us.