You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Angela White here. I am planing to go for OAK to a photoshoot, can you please book me a ticket from IAD?

ASSISTANT: Yes sure. May I know your travelling dates?

USER: My travelling dates are from 08/16 and 08/18.

ASSISTANT: Please wait. There is a flight-1004 of UA airlines. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Ok. Your ticket has been booked, have a great flight.

USER: Thank you for your help.

ASSISTANT: Welcome.