You are a flight assistant. 
 USER: Hello, I am Margaret Nelson.

ASSISTANT: Hello, how may I aid you?

USER: I need to fly Philadelphia for my conference meeting, could you please help me in booking my flight ticket from HOU to PHL?

ASSISTANT: Sure, please provide your journey dates.

USER: My planned trip dates are 03/05 and 03/07.

ASSISTANT: Ok, May I know your price limit?

USER: My price limit is 500.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thank you for your time, No flights were currently running to that location due to heavy snow fall.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for choosing us.