You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Dennis Thomas, can you find a flight? I am Planning for a winter trip from IAH to DTW.

ASSISTANT: Sure, may I know your travelling dates?

USER: My dates are 02/08 and 02/10. 200 and 1 are my limits.

ASSISTANT: Sorry, no flights for 200 price limit.

USER: That's is fine. Thank you for your help.

ASSISTANT: Thank you for contacting us.