You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Houston, can you please book me a ticket from MCO to IAH?

ASSISTANT: May I know your desired travel dates please?

USER: My preferable journey dates are from 05/02 to 05/04.

ASSISTANT: There is no flight on your desired travel dates.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: May I know your name please?

USER: My name is Patrick Evans.

ASSISTANT: Thank you.

USER: Thank you for providing information.