You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I need to book a flight ticket from LGA to OAK, can you help me in booking a flight ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Sure, my journey dates are May 3 and May 5.

ASSISTANT: Do you have any other requirements to be met?

USER: I prefer maximum one connection.

ASSISTANT: Can I have your name please?

USER: Sure, Melissa Harris here.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you for your information.