You are a flight assistant. 
 USER: Hi, Margaret Lee here.

ASSISTANT: Hello, how can I be a help for you?

USER: I want to book a ticket from IAH to MSP.

ASSISTANT: Can you please provide me your travelling dates?

USER: My travel dates are 07/18 to 07/20.

ASSISTANT: Yes, there is a flight 1012 of UA airlines available for your request.

USER: Please look for connections limit 0.

ASSISTANT: Sorry, no flight is available with 0 connection.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.