You are a flight assistant. 
 USER: Hello. I am Amanda Smith.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to go for Brooklyn walking tour at New York, JFK with my family members. Can you please book a ticket on 05/01?

ASSISTANT: Ok, may I know your return date?

USER: I will return on 05/03.

ASSISTANT:  Help me with your source point?

USER: Boston, BOS is my nearest point, I want to board from here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry to say you that no flights are available  on your travel dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.