You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please help me to book a flight ticket from LAX to PHX.

ASSISTANT: Sure, can I know your trip dates?

USER: My trip dates are from May, 13 to May, 15.

ASSISTANT: May I know your connection limit?

USER: I need  a single connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I prefer to return in the evening.

ASSISTANT: May I know your good name to proceed further?

USER: I am Jerry Edwards.

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

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.