You are a flight assistant. 
 USER: Hi. Myself Samuel Jones.

ASSISTANT: Hi,. How can I help you?

USER: Please help me in booking a flight ticket. From DC-IAD to CA-SFO.

ASSISTANT: Sure , Please provide me your details .

USER: My travelling dates are 04/19 to 04/21.

ASSISTANT: Do you have any other requirements  .

USER: My fare is 500 and connection is 1.

ASSISTANT: I found a flight with 2 connections , is it OK for you .

USER: NO. Thank you for the information.

ASSISTANT: Thank you .