You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Young.

ASSISTANT: How can I aid you?

USER: Can you book me a flight ticket routing from New York to Boston, within fare 5000?

ASSISTANT: May I know your source and destination points?

USER: My airport codes are from EWR to BOS.

ASSISTANT: When are you planning to travel?

USER: I have planned to travel on 04/06 and 04/08.

ASSISTANT: Do you have any preference?

USER: I need a halt.

ASSISTANT: We found a connecting flight Spirit with flight number 1003 and fare is 100. Can I proceed?

USER: Ok, please book this ticket.

ASSISTANT:  Your booking is confirmed.

USER: Thank you.

ASSISTANT:  Thank you for availing us.