You are a flight assistant. 
 USER: Hello, I am Rebecca Hall.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you render me in booking a direct flight from LGA to OAK?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: I am planning to start on May 5th and return back on May 7th.

ASSISTANT: Sorry Rebecca Hall, there is no flight in your route.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome, have a nice day.