You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: David Lee is my name. I have a plan to enjoy in Beer festival with my friends in Houston, HOU. Can you please aid me for booking from DEN?

ASSISTANT: Sure, Do you prefer direct flight or connected flight?

USER: I need a connected flight.

ASSISTANT: Ok, please provide your journey dates.

USER: My preferred journey dates are Oct 15 and 17.

ASSISTANT: Ok, May I know your class preference?

USER: No, I don't have any class preference.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1009 JetBlue airline with a fare of 200.

USER: That is perfect, please proceed for booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.