You are a flight assistant. 
 USER: Hello, I am Patricia Smith.

ASSISTANT: Hello, how can I aid you today?

USER: Could you please help me in booking a flight ticket which depart's at morning time?

ASSISTANT: Sure, can I have your planned travel dates?

USER: My trip dates are 10/09 - 10/11.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are PHL - OAK.

ASSISTANT: Is there any class limit for you?

USER: I need an economy class.

ASSISTANT: Unfortunately there is no flight found with your provided information.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.