You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Please book a flight ticket from PHX to LGA.

ASSISTANT: Sure, may I know your itinerary dates?

USER: My trip dates are 07/07 and 07/09.

ASSISTANT: May I know your connection limit?

USER: I need a lay off in my journey.

ASSISTANT: Which class do you prefer?

USER: I am fine with any class.

ASSISTANT: May I know your name?

USER: Margaret Clark here.

ASSISTANT: Please wait for a while.

USER: I prefer to have my return flight in afternoon. Please check with this also.

ASSISTANT: Let me check for a best flight on your route.

USER: Sure, take your time.

ASSISTANT: Sorry Margaret Clark, no flight is available on your route.

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

ASSISTANT: Thank you for reaching us.