You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to book a flight ticket from PHX to BOS?

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

USER: My travelling dates are 24 to 26 of Nov.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Jonathan Walker.

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

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for reaching us.