You are a flight assistant. 
 USER: Hello, I am Richard Rodriguez.

ASSISTANT: Hello, how may I be at your service?

USER: I am planning to go for a round trip with my friends in Houston, IAH, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please provide your origin code?

USER: It is a round trip IAH, I already mentioned above?

ASSISTANT: Ok, thank you. Please share your dates of travelling.

USER: My journey dates are from 01/29 to 01/31. Make sure that my price limit is 1000 with one connection.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We are glad to say that an airline Southwest with one connection matching with your criterion. Flight number is 1005 with price 100. Shall I reserve a ticket?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for connecting with us, have a safe journey.

USER: Thank you.