You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you for the day?

USER: Could you help me in booking a flight ticket from PHX to OAK?

ASSISTANT: Sure, I am here to help out with that. Can you please share your travel dates?

USER: I will start on June 13, return on June 15.

ASSISTANT: May I know your connection limit?

USER: I want direct flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please let me know your name to proceed further.

USER: My name is Jerry Mitchell.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.