You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am Donna King. I am planning  to surprise my best friend on her birthday at Las Vegas, LAS. Can you please book a ticket from Houston, IAH?

ASSISTANT: Sure, let me know your planned dates of travel?

USER: Journey dates are 12/30 to 01/01.

ASSISTANT: May I know if you prefer a connection within your journey?

USER: I need connecting flight.

ASSISTANT: Thank you for sharing your details. We found a Delta airline with flight number 1003 and price of 100 available according to your request.

USER: You can proceed.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for picking us.