You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Robert Rodriguez. Can you help me booking a flight ticket from SEA to OAK?

ASSISTANT: Robert Rodriguez, I am here to help you for this. Could you please share me your travel dates?

USER: I will start on June, 20 and return on June, 22.

ASSISTANT: Do you have any airline preference?

USER: No, but I need to depart in the afternoon.

ASSISTANT: Is there any other requirements?

USER: I need a break in my journey.

ASSISTANT: Please wait for a while. Sorry for inconvenience, no flights are found with your criteria.

USER: No problem, thank you for the information.

ASSISTANT: Thank you very much for contacting our agency.