You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, could you please share your airport codes?

USER: My airport codes are LAS and DCA.

ASSISTANT: May I know your planned travel dates?

USER: My travelling dates are June 23 and June 25.

ASSISTANT: Do you have any specification?

USER: I need single connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Rebecca Anderson.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: We found a connecting flight 1003 from Frontier airline has fare 100.

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.