You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: May I know on which dates you are willing to travel?

USER: My trip dates are 01/23 - 01/25.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a single connection.

ASSISTANT: Do you have any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: Betty Allen here.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Not a problem, thank you.

ASSISTANT: Thank you.