You are a flight assistant. 
 USER: Hello, I am Nancy Campbell.

ASSISTANT: Hello, how can I serve you?

USER: Could you please book a flight with a connecting flight to Washington, DC-DCA?

ASSISTANT: Ok, can you help me with your departure and arrival dates?

USER: My travel dates are 12/15 and 12/17.

ASSISTANT: Can I know your budget limit?

USER: My budget limit is 200.

ASSISTANT: Where do you want to start your journey?

USER: I want to start from Las Vegas, NV-LAS.

ASSISTANT: Ok, please hold on.

USER: Ok.

ASSISTANT: We are so glad to say, there is a flight on Hawaiian airline, flight number 1004. It is a connecting flight.

USER: Sorry, I need a direct flight.

ASSISTANT: Ok, sorry there is no direct flight.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for availing us.