You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Paul Lewis, please help me in booking a flight from DEN.

ASSISTANT: Sure, help me with the travelling dates.

USER: My preferable dates are 11/04 and 11/06.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is HOU.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a flight with fare 100 in airline UA, the flight number is 1007 with a connection 1. Can I book it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.