You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I provide assistance to you?

USER: I am Dennis Wilson. Can you help me in booking from SEA to LAS, as there is a family function at Las Vegas?

ASSISTANT: Sure, I'll help you in booking. Can I know your connection preference?

USER: I need a direct flight.

ASSISTANT: Please let me know your budget limit.

USER: My fare is 500.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: My trip dates are 07/16 to 07/18.

ASSISTANT: Ok, just a moment I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flights in between your journey routes due to heavy rains at your destination point.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaming so positive.