You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Charles Edwards want to visit DCA, can you book a ticket from OAK?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: Sure, my travelling dates will be 11/28 and 11/30.

ASSISTANT: Ok Charles Edwards, please wait a moment to check flight availability.

USER: Ok.

ASSISTANT: I have found a flight in Hawaiian airlines which is having connection 1 and the fare of the ticket is 100. Is it ok for you?

USER: Ok, proceed with my booking.

ASSISTANT: Ok Charles Edwards, your ticket booking has done and the flight number is 1020.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.