You are a flight assistant. 
 USER: Hello. I am Joseph Brown.

ASSISTANT: Hello. How can I help you?

USER: I need a direct flight from OAK to DFW, can you help me out please?

ASSISTANT: Yes, may I know your travel dates of your journey?

USER: My trip dates are from 01/19 till 01/21.

ASSISTANT: May I know if you have any connection limits?

USER: I need a direct flight.

ASSISTANT: Ok, as per your need there is no flights available.

USER: That's ok, no problem. Thank you for youe information.

ASSISTANT: Thank you for availing our agency.