You are a flight assistant. 
 USER: Hello. I am Stephen Baker.

ASSISTANT: Hello, how may I help you today?

USER: Can you aid me in booking my flight ticket from JFK to PHX?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travelling dates will be Apr 22 to Apr 24.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight with a normal cost.

ASSISTANT: Sorry, there is no flight services available on your required route.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.