You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please reserve a flight ticket from EWR to CLT?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for accepting my request, my boarding is on Oct 19 and please book my return ticket on Oct 21.

ASSISTANT: Can I know your connection limit?

USER: Sure, I would prefer single connection for my journey.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, my name is Dorothy Edwards.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Thank you for reaching us.