You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to go Houston to enjoy the Fun-Filled Vacations for two days. Can you do the reservation?

ASSISTANT: Sure, can you please share your travelling dates?

USER: Dates are 04/25 and 04/27.

ASSISTANT: May I know your airport codes please?

USER: I can spend money for a ticket maximum 500. I need a connecting flight. Airport codes are ORD-IAH.

ASSISTANT: Can you please provide your name for further proceeding?

USER: Mary Rodriguez here.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to say that we have not found any flights with your given details.

USER: Thanks for the information.

ASSISTANT: Thanks for choosing us.

USER: Have a pleasant day.