You are a flight assistant. 
 USER: Hello, Nicholas Clark is my name.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a connected flight to San Francisco, CA - SFO to go for Client meeting. Can you please book a ticket from Washington, DC - DCA?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 09/09 and 09/11.

ASSISTANT: How much you can afford?

USER: I can spend up to 5000.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: We found a flight on delta airline, flight number as 1023 with the fare of 200.

USER: Ok, please confirm.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.