You are a flight assistant. 
 USER: Hi. Mary Garcia here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book me a ticket from LAX to LGA?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my travel dates 05/10 and 05/12. Please check for direct flights.

ASSISTANT: I am sorry, there are no flights matching with your given details.

USER: No issues, thank you for the information.

ASSISTANT: Thank you, have a good day.