You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Dorothy Clark. Can you help me to find a flight from SFO to DCA?

ASSISTANT: Ok, can I have your journey dates?

USER: My trip dates are 10/21 and 10/23.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there is a connecting flight-1021 with price 300.

USER: You can proceed with this flight.

ASSISTANT: Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Ok, your ticket has been done with UA airline.

USER: Thanks for your help and valuable information.

ASSISTANT: Welcome Dorothy Clark.