You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you out?

USER: Can you help me in booking a flight ticket from BOS to LGA?

ASSISTANT: Sure, we are glad to help you. Can I have your travelling dates?

USER: I want to travel on 10/18, and return on 10/20.

ASSISTANT: Do you have any break in between journey?

USER: I need a break in my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Melissa Jones.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for contacting us.