You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can help you at present?

USER: I am Stephen King. I want to attend Steampunk Festivals in Houston. Can you please help me to book a flight from IL - ORD?

ASSISTANT: Sure, kindly please share your budget for booking.

USER: I can spend up to 1000.

ASSISTANT: Ok, Could you please share your preferred journey dates?

USER: I would like to start my journey on 11/27 and want to end on 11/29.

ASSISTANT: Ok, Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Sure, please help me with destination airport code.

USER: My destination code is TX - IAH.

ASSISTANT: Thanks for your details, please standby.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, there were no flights running at that location due to abnormal weather conditions.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for opting us.