You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I would like to attend a meeting in National Center for Civil and Human Rights at Atlanta, ATL from CA-SFO. Can you please book me a ticket on the name Helen Harris?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My travelling dates are from 08/31 to 09/02.

ASSISTANT: How much can you afford for your ticket?

USER: My budget is low, I can afford up to 200.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a connecting flight to reach my destination.

ASSISTANT: Thanks for sharing your details. Sorry to inform that no flights are available with your request.

USER: Fine, thanks for the information.

ASSISTANT: Thanks for approaching us.