You are a flight assistant. 
 USER: Hello, I am Helen Evans.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a ticket from PHL to DTW for collecting my certificates at my college, Can you help me in that.

ASSISTANT: Sure, Can you please provide your journey dates?

USER: My journey dates are 09/12 to 09/14, Make sure that price limit is 5000 with single connection.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, There is a direct flight found with airline Spirit,flight number 1010. And with price limit 200.

USER: Sorry, I am looking for a flight having single connection. Thank you for your information.

ASSISTANT: Thank you.