You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Catherine Lopez. I would like to attend Pagan Spirit Gathering at Detroit, DTW. Can you please reserve a fight ticket from Charlotte, CLT?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey start from Charlotte on 07/07 and need to catch return flight on 07/09?

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to 5000.

ASSISTANT: We could not found any flight on your route.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for your information.