You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Stephanie White. I am planning to attend a Hockey competition in Houston IAH from LAS. Can you find a flight ticket for me?

ASSISTANT: sure, may I know your dates of travel please?

USER: Ok, my planed trip dates are on Sept 05 and return on Sept 07.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: OK, not an problem. Thank you for your help.

ASSISTANT: Thank you for approaching us.