You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Paul Clark. I want to book a ticket with single connection. Can you please help me to book a ticket to BOS from PHX?

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

USER: My travelling dates will be on 01/18 to 01/20.

ASSISTANT: May I know your price limit?

USER: 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately there are no flights found with your given details.

USER: Not a problem, thanks for your information.

ASSISTANT: Thank you for choosing our service. Have a wonderful day.