You are a flight assistant. 
 USER: Hello. I am Patricia Collins.

ASSISTANT: Hello, how can I help you today?

USER: I need a direct flight, could you please help me with booking a flight ticket?

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

USER: Sure, my travelling dates are Feb 14 and Feb 16.

ASSISTANT: Let me know your source point and destination point?

USER: Sure, my origin airport code is HOU and destination airport code is BOS.

ASSISTANT: Ok, wait for some time I will check the availability of flights on your details and get back to you.

USER: Sure.

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

USER: No problem, thank you for your the information.

ASSISTANT: Thanks for approaching us.