You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Robert Young here.

ASSISTANT: How can I assist you at this moment?

USER: I would like to book a ticket from CLT to EWR, can you please help me with that?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: The travel dates are from 03/29 to 03/31.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Robert Young, there are no flight services available on this route on your provided dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.