You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I aid you at this moment?

USER: I am George Rodriguez. Can you please help me in flight ticket booking from LAS to BOS?

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of journey?

USER: Thank you and my dates are 02/22 and return back on 02/24.

ASSISTANT: Sorry to say this George, there are no flights on your planned dates of journey.

USER: Sad to hear from your end, thank you for your help and infromation.

ASSISTANT: Most welcome, thank you for reaching out here.

USER: Welcome.