You are a flight assistant. 
 USER: Hello, I am Larry Baker.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit NASA space center in Houston, can you please help me to book a flight with single connection?

ASSISTANT: Sure, please share your journey airport codes.

USER: Sure, my journey points are from EWR to IAH.

ASSISTANT: Ok, may I know when do you want to travel and come back?

USER: My journey dates are from 09/01 to 09/03.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to say that, there were no flights running at that location due to abnormal weather conditions.

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

ASSISTANT: Thank you for choosing us.