You are a flight assistant. 
 USER: Hi,. I am Margaret Garcia from Charlotte.

ASSISTANT: Hello, how may I help you at present?

USER: In Orlando, Painting with a Twist is conducting a painting competition. So, I want to participate in the competition. Can you please book me a ticket with price under 500?

ASSISTANT: Sure, we are gleeful to help you for booking.

USER: Thank you.

ASSISTANT: Let me know your preferred travelling dates.

USER: My preferable travel dates are from 04/04 to 04/06.

ASSISTANT: I need your selected airport code, that you wish to board from.

USER: I wish to board from Charlotte, NC-CLT.

ASSISTANT: To proceed further, please help me with destination airport code.

USER: My destination airport code is FL-MCO.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

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

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for reaching our service.