You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking a flight ticket from Las Vegas, LAS to reach Seattle, SEA?

ASSISTANT: Sure, we are gleeful to help you. Please provide your travelling dates.

USER: My journey dates are from Feb 18 to Feb 20.

ASSISTANT: Do you have any break in between journey?

USER: I need a way station in between journey.

ASSISTANT: May I know your class preference?

USER: I prefer economy class.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: I need your name to proceed further. Can you please provide your good name?

USER: My name is Emily King.

ASSISTANT:  we regret to inform you that there are no flight services are available on this route with your preferences.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.