You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Can you book a direct flight to New York?

ASSISTANT: Sure, please share me your travel dates.

USER: I will fly on Nov 1 and return on Nov 3.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: My name is Eric Adams.

ASSISTANT: May I know your airport codes?

USER: My source point is CLT and my destination is EWR.

ASSISTANT: Please share me your other specifications.

USER: I do not have any other requirement.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us.