You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you today?

USER: I am Gregory Lopez. I would like to attend pagan festivals in HOU, Can you please help me in reservation from OAK?

ASSISTANT: Sure, please share your travelling dates?

USER: My journey dates are, depart on July 15th and intend to return back on July 17th.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you.