You are a flight assistant. 
 USER: Hello. Myself Rebecca Rodriguez.

ASSISTANT: Hello, how may I aid you?

USER: Can you please book a flight ticket from OAK to LGA?

ASSISTANT: Sure, could you please provide your travelling dates?

USER: Sure, I need to travel on dates of 02/05 and 02/07.

ASSISTANT: Sorry to say, no flights were available on your dates.

USER: Oh! It is sad to hear. Anyway, I will choose another agency this time.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your time.