You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from PHX to MSP?

ASSISTANT: Sure, can you please share your journey dates?

USER: I want to fly on May 18 and return on May 20.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications to be met?

USER: I would like to return in the morning time.

ASSISTANT: Can I have your name to proceed further?

USER: Myself Michael Williams.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.