You are a flight assistant. 
 USER: Hello. Myself Rebecca Wilson.

ASSISTANT: Hello, how may I assist you?

USER: I need to travel Seattle, can you please reserve flight ticket from DCA and SEA?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My travelling dates are Sept,14 and Sept,16.

ASSISTANT: Do you have any class preference?

USER: I don't need any class preference, but my depart time should be in the morning.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a connecting flight for my journey.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: I found an economy class ticket in Delta airlines with fare 200 and it is a direct flight. Can I book your ticket?

USER: I have already mentioned above, I need a connecting flight for my journey.

ASSISTANT: Sorry, there are no connecting flights with your requirement. Do you want me to proceed?

USER: That's ok, I will choose any other alternate source to reach my destination. Thank you for searching the flights.

ASSISTANT: Thank you for reaching us.