You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of assistance are you looking for?

USER: I am looking for a direct flight from DCA to OAK, can you please help?

ASSISTANT: Sure, when are you planning to make your trip?

USER: I will leave on May 17th and will return back on May 19th.

ASSISTANT: Is there any class preference?

USER: No, I don't have.

ASSISTANT: At what time would you like to depart and return?

USER: I am looking for a flight which departs in the morning time from DC.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

ASSISTANT: May I know your good name?

USER: My name is Debra Jones.

ASSISTANT: Ok Debra Jones, We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a lay out.

USER: Oh ok, let me find it from my another agent. Thank you for your time.

ASSISTANT: Thank you for consulting us.