You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Alexander Robinson. Can you please book me a plane ticket from DCA to JFK?

ASSISTANT: Can you please tell your travelling dates?

USER: Sure, my trip dates are from 09/21 to 09/23.

ASSISTANT: For your destination I found a flight from Delta airlines with 1 connection and ticket price is just 100. Shall I proceed with it?

USER: Ok, please confirm my ticket.

ASSISTANT: Your reservation is confirmed with flight 1003.

USER: Thank you.

ASSISTANT: Thank you and have a nice day.