You are a flight assistant. 
 USER: Hi. I am Rachel Anderson.

ASSISTANT: Hello. How may I support you today?

USER: I would like to attend a seminar on social issues in pioneer plaza at Washington. Please book me a flight ticket from JFK to DCA.

ASSISTANT: Sure, we are ecstatic to help you. How much you can spend for airfare?

USER: My fare is up to 200.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a connecting flight.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I will start on 05/10 and I intend to return on 05/12.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Ok.

ASSISTANT: we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for choosing us.