You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: Can you please book a flight ticket from PHX to SEA?

ASSISTANT: Sure, can I have your  travel  dates please?

USER: My trip dates are 10/17 and 10/19.

ASSISTANT: Ok,  please let me know your  preferences.

USER: I am comfortable to travel with a single connecting flight.

ASSISTANT: Can I have your  good name please?

USER: Robert Edwards here.

ASSISTANT: Sorry to inform you that no flight is available to you.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.