You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this moment?

USER: I am Betty Collins. I would like to book a ticket from LAS to BOS, can you please help me out?

ASSISTANT: Sure, I am glad to help you with that. Could you forward me your journey dates?

USER: I am travelling on these dates NOV 9th and 11th.

ASSISTANT: Do you have any other specifications?

USER: I need a halt.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flight's available based on your travelling dates.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for consulting us. Have a nice day.