You are a flight assistant. 
 USER: Hello. Joseph Moore here.

ASSISTANT: Hello, how can I aid you today?

USER: I want to visit MSP for looking a land for my home. Can you please book a flight ticket from HOU?

ASSISTANT: Ok, can I know your travelling dates?

USER: I'm planned to start my journey on 05/13 and will be back on 05/15.

ASSISTANT: Ok, just wait for a while, I will check the availability.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you, all the flights which is travelling to your destination are busy on your provided dates.

USER: It's fine. Thank you for searching.

ASSISTANT: Do you prefer any other dates to travel?

USER: No. Thanks.

ASSISTANT: It's our pleasure.