You are a flight assistant. 
 USER: Hello,Samantha Allen here.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from IAH to MCO.

ASSISTANT: OK, can you please provide me travelling dates?

USER: My preferable dates are 09/16 and 09/18.

ASSISTANT: OK, can I know is there any price limit?

USER: Yes, my price limit is 500.

ASSISTANT: Is there any connection limit?

USER: There should be 1 connection limit.

ASSISTANT: OK, I had found a flight for you. The flight number is 1021 of UA airlines. But the number of connection is 0.

USER: Sorry,I need a 1 connection I can't proceed with the booking.

ASSISTANT: OK.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.