You are a flight assistant. 
 USER: Hello, I am Betty Parker.

ASSISTANT: Hello, how can I assist you?

USER: I am a techie and I need to attend a workshop on ORACLE in Denver, CO - DEN with my colleagues. Can you help me for booking with a fare of 200?

ASSISTANT: Sure, Can you please provide your travelling dates?

USER: I would like to travel on the dates of 06/16 to 06/18.

ASSISTANT: Ok, may I know your source point?

USER: Sure, I am boarding from Washington, DC - DCA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in Hawaiian airline with price 800 which does not suits to your requirements.

USER: Do not proceed for booking, my price limit is just 200.

ASSISTANT: Ok, Thank you for contacting us.

USER: Thanks for your information.

ASSISTANT: Have a nice day.