You are a flight assistant. 
 USER: Hello. I am Sandra Scott.

ASSISTANT: Hello, How can I help you out, Sandra Scott?

USER: On my birthday, I am planning to give treat for my friends by taking to Boston Odyssey dinner cruise.Can you book a flight ticket to Boston, BOS?

ASSISTANT: Please provide your travelling dates so that I can help you easily.

USER: Trip dates are 07/08 to 07/10.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a direct flight.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: Source code is Los Angeles, LAX.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no direct flight found on your requested dates.

USER: No problem. Thank you.

ASSISTANT: Thanks for choosing us, wish you advance happy birthday.