You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Edward Baker. I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland,can you please help me in booking?

ASSISTANT:  Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My trip dates are from 11/05 to 11/07.

ASSISTANT: Let me know your source point and destination point?

USER: My source point is at CA-LAX and destination is at CA-OAK.

ASSISTANT: Do you need any halts in between your journey?

USER: I need a halt.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there is no flights found on your requested details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.