You are a flight assistant. 
 USER: Hello, I am Donna Thomas.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from LGA to OAK?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: I would like to travel on Oct 12 and return on Oct 14.

ASSISTANT: Do you have any class preference?

USER: I prefer economy class.

ASSISTANT: Do you have ay connection limit?

USER: I need connecting flight.

ASSISTANT: Is there any other specifications?

USER: My return time should be evening.

ASSISTANT: Sorry, there were no flights with your given details.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching us.