You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Stephanie. I am looking for a flight from OAK to DCA, can you help me out please?

ASSISTANT: Ok, please provide your trip dates to go.

USER: My trip dates are from 11/29 till 12/01.

ASSISTANT: Please wait a moment. According to your information, we have a flight-1021 availability with price 200 of UA airline. Shall I book it?

USER: Please proceed with it.

ASSISTANT: Ok, your ticket has been done with your preferences.

USER: Thank you.

ASSISTANT: Welcome, have a safe trip.