You are a flight assistant. 
 USER: Hello, Ruth Jones here.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Denver, can you please book me a ticket from LGA to DEN?

ASSISTANT: Sure, let me know your travel dates please?

USER: I am planning my journey on the dates of Apr 11 and Apr 13.

ASSISTANT: Do you need any specific arrival and depart time??

USER: I prefer depart and arrival time at afternoon.

ASSISTANT: May I know your connection limit?

USER: I need connecting flight in this route.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Do you need any airline preference?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flight services available on your given route.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for reaching us, have a nice day.