You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in changing my recent reservation? As my planned trip has been postponed to some other dates.

ASSISTANT: Sure, we are here to assist you.

USER: Thanks for that.

ASSISTANT: Please mention your name.

USER: Sure, my name is Ronald Martin.

ASSISTANT: We found a reservation on your name, can you provide your new travel dates?

USER: Sure, my departure and return travel dates are 28th and 30th of December.

ASSISTANT: May I know your airport codes?

USER: Yes, my source and destination airport codes are LAX and HOU.

ASSISTANT: Do you need a stopover?

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any airline preference?

USER: I prefer normal-cost airlines.

ASSISTANT: Do you need any more specifications?

USER: Yes, I prefer economy class to travel.

ASSISTANT: We found a connecting flight in an United Airlines with flight number 1017. Shall I book the ticket in economy class?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket has been reserved at the cost of 200.

USER: Thank you so much for your help.

ASSISTANT: Thank you for choosing us.