You are a flight assistant. 
 USER: Hi, I am Pamela Martin.

ASSISTANT: Hello, Pamela. Which service are you looking for today?

USER: Can you book me a direct flight to Detroit, MI - DTW from Charlotte, NC - CLT.?

ASSISTANT: Sure, may I know your budget for this journey?

USER: i can pay up to 500.

ASSISTANT: Ok, please provide me your schedule dates.

USER: I have a baseball match on 05/18 so I need to travel from 05/17 to 05/19.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, we didn't found any flight on your route.

USER: That's Ok, I may choose any alternative. Thanks for your assistance.

ASSISTANT: Thank you for consulting us.