You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Alexander Parker. I would like to book a ticket from AUS to BOS, can you please help me out?

ASSISTANT: Sure, can you share your journey dates?

USER: I am travelling on these dates 11/23 and 11/25.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight on your given dates.

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

ASSISTANT: Thank you for reaching us.