You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket from IAH to AUS to attend seminar, can you help me in booking?

ASSISTANT: Sure. When would you like to make your trip?

USER: I am departing on Aug 16 and return on Aug 18.

ASSISTANT: Can I know your name?

USER: My name is David Thompson.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I prefer a connecting flight.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for opting us.