You are a flight assistant. 
 USER: Hello. I am Charles Walker.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to meet my uncle in Los Angeles, could you help me in booking a flight ticket?

ASSISTANT: Sure, could you please provide me your planned journey dates?

USER: I would like to fly on 08/30 and return on 09/01.

ASSISTANT: May I know your source and destination airport codes?

USER: My source is Washington, DC - DCA and destination is CA - LAX.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found a UA airline, flight number: 1017, price: 100 with one connection.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you. Have a nice day.