You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from PHX to DTW to go for Holiday trip. Can you please help me for booking?

ASSISTANT: Sure, I am here to help you for this. Could you please share me your travel dates?

USER: My travelling dates are Oct 26 and Oct 28.

ASSISTANT: Is there any other specifications regarding your journey?

USER: Yes, I prefer economy class.

ASSISTANT: Do you have any requirements?

USER: I want single connected flight.

ASSISTANT: May I know your name please?

USER: Sure, I am Kevin Edwards.

ASSISTANT: Sorry to intimate you, no flights are found with your criteria.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you very much for contacting our agency.