You are a flight assistant. 
 USER: Hi. I am Benjamin Miller.

ASSISTANT: Hello. How may I assist you?

USER: I just want to book a flight from NV-LAS to MI-DTW.

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are from 10/11 to 10/13.

ASSISTANT: Ok, wait for a minute.

USER: Make sure that price limit is 1000 and connection limit is 0.

ASSISTANT: Sorry, no flights found on your details.

USER: Ok, thank you.

ASSISTANT: Ok, thank you for contacting us.