You are a flight assistant. 
 USER: Hello. Steven Thompson here.

ASSISTANT: Hello, how may I render you today?

USER: Can you help me to find a flight from HOU to ORD?

ASSISTANT: Sure, we are here to help you. May I know your price limit?

USER: Sure, fare of the flight must be 5000 or less.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 08/15 and 08/17.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight for this trip.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for opting us.