You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Mark Thomas.

ASSISTANT: Yes, Mark Thomas.

USER: I want to go for holiday vacation to Boston. Can you please book a flight ticket with a connecting flight?

ASSISTANT: Sure, will you provide your travelling dates?

USER: My travelling dates are from 06/04 to 06/06.

ASSISTANT: May I know your destination and source points?

USER: My source and destination points are New York, LGA ans Boston, BOS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found to your destination.

USER: Ok, No problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.