You are a flight assistant. 
 USER: Hello, myself Kevin Parker.

ASSISTANT: Hello, how can I help you?

USER: I would like to celebrate my birthday at Houston, please help me in booking a ticket from LAS to IAH.

ASSISTANT: Sure, may I know your journey dates for enhanced search?

USER: My trip dates are 08/10 and 08/12.

ASSISTANT: please wait a moment.

USER: I need a flight with 1 connection.

ASSISTANT: Kevin, no flights has been found on your request.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.