You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Carolyn Turner.

ASSISTANT: Ok.

USER: From 08/15 to 08/17 I have planned a small trip. So please book a flight ticket for me?

ASSISTANT: Sure, could I have your journey airport codes?

USER: Sure, my journey airport codes are HOU and PHL.

ASSISTANT: Please wait for a minute.

USER: OK.

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

USER: Ok, no problem with that. Thanks for the information.

ASSISTANT: Thank you for reaching us.