You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Stephen Hernandez. Can you please book a flight ticket from HOU to OAK?

ASSISTANT: May I know your travelling dates please.

USER: Sure, I need to travel on dates of 08/08 and 08/10.

ASSISTANT: I am sorry no flights found on your route.

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

ASSISTANT: Thank you.