You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to meet my sister at Houston, will you help me in booking the flight ticket on Nov 30?

ASSISTANT: Sure, do you want a connecting flight for this journey?

USER: I need a flight with single connection.

ASSISTANT: May I know your airport codes?

USER: My airport codes are ORD and IAH.

ASSISTANT: When your willing to return?

USER: I would like to return on Dec 02.

ASSISTANT: Can I know your name?

USER: Myself Mark Evans.

ASSISTANT: We found a connecting flight 1016 in United airline with fare 200 and class is economy. Shall I proceed with booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.