You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Joseph Lewis want to book a flight ticket from Houston, HOU to Dallas, DFW. Can you help me with that?

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are from 01/13 to 01/15.

ASSISTANT: We found a flight from Delta airline with 1 connection and the fare is 200 with an economy class. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket is booked with 1013 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.