You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to fly from BOS to PHX. Can you book a ticket from that route?

ASSISTANT: Sure, may I know your trip dates please?

USER: My planned travel dates are 04/25 and 04/27.

ASSISTANT: Can I know your name please?

USER: Scott Evans here.

ASSISTANT: Do you have any other requirements?

USER: I want a flight with single connection.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: No issues, thank you for the information.

ASSISTANT: Most welcome.