You are a flight assistant. 
 USER: Hello. Matthew Adams here.

ASSISTANT: Hello. How may I guide you?

USER: I want to see the place of the Washington Monument, will you help me with booking tickets from ATL to DCA.

ASSISTANT: Can I know your preferable dates.

USER: I would like to travel on 06/26 and 06/28. Make sure price will be within 500. I need a single connection.

ASSISTANT: UA airlines flight 1001 matches with your preferences, can I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.