You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Elizabeth Miller.

ASSISTANT: How can I aid you?

USER: Can you please book a flight ticket from LAX to BOS?

ASSISTANT: Sure, we are happy to help you. May I know your travelling dates?

USER: My journey dates on, July 10th and 12th.

ASSISTANT: Do you need any halt in between journey?

USER: I need a direct flight.

ASSISTANT: Thanks for providing details, sorry no flights are available on your journey routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.