You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you aid me in booking a flight ticket from OAK to DFW?

ASSISTANT: On which dates you are planning to go?

USER: I am planning to start on Mar 16th and return back on Mar 18th.

ASSISTANT: May I know your class preference?

USER: Any class is fine for me.

ASSISTANT: Do you have any other specifications?

USER: Make sure that connection limit is 1.

ASSISTANT: May I know your good name?

USER: I am Helen Thomas. I am Helen Thomas.

ASSISTANT: There is a connecting flight-1023 in economy class, is it fine for you?

USER: Yes, you can go ahead.

ASSISTANT: Booking is done on the name Helen Thomas.

USER: Thank you for the support.

ASSISTANT: Welcome, have a safe trip.