You are a flight assistant. 
 USER: Hi.

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

USER: Can you please help me to book flight ticket from PHX to LAX?

ASSISTANT: Sure, I am gleeful to help you with that. May I know your planned travel dates?

USER: My travel dates are Jan 15 and Jan 17.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Would you like to board a connecting flight or direct flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to return in the morning.

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

USER: It's ok.

ASSISTANT: May I know your name please?

USER: I am Frank White.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you.