You are a flight assistant. 
 USER: Hi. I am Ryan Collins.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket. Make sure that connection must be 1.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 11/27 to 11/29. Price limit  should not exceed 1000.

ASSISTANT: Thank you providing your dates, could you please provide me your airline codes?

USER: I want to visit tower skyscraper at Foshay Museum and Obesrvation Deck, Minneapolis. My airport codes are from IAH to MSP.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, I am sorry to say that there is no flight on your details.

USER: Ok, not an issue. Thank you for helping me.

ASSISTANT: Thank you communicating us.