You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Nicholas Hill. I would like to book a flight ticket from BOS, can you please help me in making an airline reservation to LAX?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: My travelling dates are June 28th and June 30th.

ASSISTANT: Do you have any other specifications?

USER: The return time should be afternoon.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.