You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Donald Hernandez.

ASSISTANT: Ok.

USER: I am planning to visit National Zoological Park in DCA, can you help me in booking a ticket from IAD?

ASSISTANT: Sure. Please provide your travelling dates.

USER: My planning dates are from 06/15 to 06/17.

ASSISTANT: Ticket can be booked with airline Southwest, price is 200. Flight connections is 1 with number 1004.

USER: Sure. please proceed.

ASSISTANT: Your ticket is booked from IAD to DCA.

USER: Thank you for your help.

ASSISTANT: Thanks.