You are a flight assistant. 
 USER: Hello, I am Jonathan Gonzalez.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me book a direct flight from Houston to attend a live concert at Philadelphia?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My dates of journey are 03/29 and 03/31.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are IAH to PHL.

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

USER: It's ok, thank you for the response.

ASSISTANT: Thank you.