You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can we do for you today?

USER: My name is Steven Collins. I want to book a flight ticket with price limit of 200 for visiting a Smith Center in Las Vegas.

ASSISTANT: Ok, please provide your travelling dates.

USER: My departure day is 02/16, return day is 02/18.

ASSISTANT: Ok, please specify your airport codes.

USER: My source and destination airport codes are TX-IAH, NV-LAS. Connections limit is one.

ASSISTANT: Ok, please wait for a minute. I will check and get back to you.

USER: Ok.

ASSISTANT: We found a UA airline with a single connection. The flight number is 1005 with price 100. Shall I reserve a ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with the name Steve Collins.

USER: Thanks for your service.

ASSISTANT: Thank you for your interest on us. Have a pleasant day.