You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Samantha Williams. I would like to book a ticket from PHX to DTW.

ASSISTANT: Ok, may I know your planned travel dates?

USER: Sure, My travel dates are Aug 22 and Aug 24.

ASSISTANT: Do you need halt in between your journey?

USER: I would like to travel by single connection flight.

ASSISTANT: Is there any class preference?

USER: No. I have none.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem, Thank you for your time.

ASSISTANT: Thank you for opting us.