You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Joseph Roberts. Can you please book a flight ticket from OAK to LAX?

ASSISTANT: Sure, please share your dates of your trip.

USER: Sure, I need to travel on dates of 09/29 and 10/01.

ASSISTANT: I am sorry there are no flights that are moving. Sorry for the trouble.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Welcome.