You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty Campbell.

ASSISTANT: Betty, how may I help you?

USER: I would like to book a ticket from CLT to BOS, can you please help me out?

ASSISTANT: Sure, please provide your journey dates.

USER: I am travelling on these dates 07/22 and 07/24.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

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