You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket in the afternoon to attend a business meeting with my colleagues at Washington, can you help me with booking?

ASSISTANT: May I know your desired travel dates please?

USER: My travel dates are Mar 03 and Mar 04.

ASSISTANT: Can I know your preferred airport codes please?

USER: My airport codes are EWR to IAD.

ASSISTANT: Do you have any specifications?

USER: I need a lay by in between my journey.

ASSISTANT: May I know your name please?

USER: I am Timothy Johnson.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Sorry, can you please check on Mar 02 and Mar 04.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked, flight number 1004 with Jet Blue airlines.

USER: Thank you.

ASSISTANT: Thank you for opting us.