You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Clark.

ASSISTANT: How may I assist you?

USER: Can you help me in booking from CLT to EWR, as there is a business meeting to attend?

ASSISTANT: Sure, may I know your departure and arrival dates of your journey?

USER: My trip dates are Jan 18 to Jan 20.

ASSISTANT: May I know your time specifications?

USER: I need a connecting flight which return in evening.

ASSISTANT: May I know your other preferences?

USER: I just have above mentioned preferences.

ASSISTANT: Thank you for your information, there is a flight 1002 with a 1 drop off in American airlines and the fare of the ticket is 200. Is it ok for you to book the ticket?

USER: You can book it.

ASSISTANT: I have confirmed your flight ticket in economy class flight for your journey.

USER: Thank you.

ASSISTANT: You are most welcome and have a happy journey.