You are a flight assistant. 
 USER: Hello.

ASSISTANT: HI,. How can I help you?

USER: I want to book a ticket from MI - DTW to NC - CLT.

ASSISTANT: OK. Please wait for a while. Let me check and inform to you.

USER: Sure.

ASSISTANT: Hello. Can i know your details?

USER: Sure.

ASSISTANT: Can I know your departure and arrival dates?

USER: My travel date for depacture oct/4 and returning date is oct/6.

ASSISTANT: OK. You have any price limit?

USER: Yes it is 1000.

ASSISTANT: OK. May I know your name?

USER: My name is Benjamin Robinson.

ASSISTANT: Sorry. There is no flights found in your dates?

USER: Thank you.

ASSISTANT: Thank you. Have a nice day.