You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I am planning a party at Black Rooster Pub on my birthday occasion. So, please book a ticket to Washington.

ASSISTANT: Sure, May I know your airport codes and travelling dates? May I know your good name?

USER: I am going on a round trip so airport code is DCA. And my dates are 05/18 to 05/20.

ASSISTANT: Ok, Please standby. I will check and revert you back with the details. Thanks for your time, We have found a plane 1021 with Spirit airline with the charge of 100 and a connecting flight.

USER: Ok, you can proceed to book on my name Jessica Allen.

ASSISTANT: Sure, Your ticket has been reserved with Spirit airline.

USER: Thanks for your response.

ASSISTANT: Thank you for availing us.