You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please book a ticket from PHX to MSP as I want to attend a music festival.

ASSISTANT: Sure. When would you like me to book your flight ticket?

USER: I want to travel on Jan 14 and return on Jan 16.

ASSISTANT: Can I have your name?

USER: My name is Catherine Collins.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in the afternoon.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. I am sorry, there were no flights available that matches with your time.

USER: Not a problem, thank you.

ASSISTANT: Thank you for approaching us.