You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: I need a direct flight to Boston, to meet my family doctor, please help me with booking a ticket.

ASSISTANT: Sure, May I know the airport codes?

USER: Its from LAX to BOS.

ASSISTANT: Please help me with your journey dates.

USER: My travelling dates are from 08/10 to 08/12.

ASSISTANT: Can I get your name?

USER: I am Timothy Roberts.

ASSISTANT: Please give a minute.

USER: OK.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.