You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Here Patricia Thomas and there is a meeting in Oakland, so can you book a ticket for me to OAK from DCA?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: Thank you for assistance and I have planned my dates on 09/20 and back on 09/22.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100. Is it ok for you?

USER: You can book the ticket, that is perfect.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.