You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please book me a flight ticket from LAS to LAX to meet my family.

ASSISTANT: Sure, let me know about the planned travel dates.

USER: I have planned to travel on Feb 27th and return on Feb 29th.

ASSISTANT: Is there any connection limit for this journey?

USER: I prefer connecting flight.

ASSISTANT: May I know the timing concerns either in morning, afternoon or evening?

USER: I want to return fly at afternoon time.

ASSISTANT: Is there any requirement in class or airline preferences?

USER: No, thanks.

ASSISTANT: Please provide me the name.

USER: Myself Katherine Robinson.

ASSISTANT: Sorry to say, there are no flights are available for your desired intent.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.