You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am looking for a direct flight for my journey, can you please find out a flight for me?

ASSISTANT: Sure, may I know your planned trip dates?

USER: Thank you for accepting my request, my boarding is on Aug 08 and please book my return ticket on Aug 10.

ASSISTANT: May I know your airport codes?

USER: Sure, I want to travel from IAD to DFW.

ASSISTANT: Do you need any stop over in between journey?

USER: No, I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to departure in morning time.

ASSISTANT: Please forward your name.

USER: Sure, my name is Emily Gonzalez.

ASSISTANT: sorry, there are no flights found on your specified trip dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Thank you for availing us.

USER: Welcome.