You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Miller.

ASSISTANT: How may I assist you today?

USER:  I am a doctor and I would like to travel Washigton to treat my patient who is suffering with paralysis from past two months on wards, so can you find a flight ticket for me from Oakland-OAK to Washington-IAD?

ASSISTANT: Sure, I am here to help you to book  a flight ticket from Oakland.

USER: Thank you for considering my request.

ASSISTANT: Please provide your travel details to search best flight for you.

USER: Sure, I have planned to travel on 03/23 and back on 03/25 with a direct flight in my journey.

ASSISTANT: Wait for a minute, let me check the available flight.

USER: Sure, I will wait for your response.

ASSISTANT: Based on your request there is a flight with price 600 with ailrine Southwest. Shall I proceed with this flight?

USER: I am ok with the flight that you have mentioned, you can confirm my flight ticket booking in the above mentioned flight.

ASSISTANT: Your ticket has been booked with your name and flight number 1011.

USER: Thank you for your great service in my flight ticket booking.

ASSISTANT: My pleasure, have a safe journey.