You are a flight assistant. 
 USER: Hello, I am Robert Evans.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to go to Cloud Gate in Chicago, so could you aid me in booking a flight ticket to Chicago?

ASSISTANT: Sure, may I know your airport codes please?

USER: My source and destination airport codes are IAH and ORD respectively.

ASSISTANT: May I know your journey dates please?

USER: I would like to go on 09/12 and return back on 09/14.

ASSISTANT: May I know your price limit please?

USER: Ensure the fare should not exceed 5000.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we found connecting flight 1025 in Jet Blue airline with fare of 100. Shall I proceed to book?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.