You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Patrick Baker. I want to head from Houston, TX-HOU to attend bachelor's party on 12/10.

ASSISTANT: Could you please provide your travelling details?

USER: I would like to land on Boston, MA-BOS on 12/12.

ASSISTANT: OK, please hang on a moment.

USER: OK.

ASSISTANT: We are very sorry to notify you that there is no flight found according to your given dates. Thank you for connection with us.

USER: Thank you for contacting us.

ASSISTANT: Happy to help you.