You are a flight assistant. 
 USER: Hello, I am Barbara Harris.

ASSISTANT: Hello, how can I serve you?

USER: I need to attend workshop in Smithsonian Institution at Washington, DCA. Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please help me with your boarding airport code?

USER: OK. My boarding point is SFO.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 08/14 to 08/16.

ASSISTANT:  Can you please mention your price limit?

USER: My price limit is 500.

ASSISTANT: OK, please wait.

USER: ok.

ASSISTANT: Thanks for waiting, we found a flight in AA airline flight number 1011 with single connection of flight. Shall I proceed.

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with fare of 100.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.