You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Jonathan Adams. I want to book a flight ticket from DC-DCA to CA-LAX. Can you help me?

ASSISTANT: May I know your travel dates?

USER: 09/18 and 09/20 are my travelling dates.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1012. Shall I proceed with this flight?

USER: You can reserve it.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Most welcome.