You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Young.

ASSISTANT: How can I help you Linda?

USER: I want to book a ticket from OAK to PHX to meet my uncle, can you help me in booking?

ASSISTANT: Could you please provide me your travel dates?

USER: I am departing on 09/09 and return on 09/11.

ASSISTANT: Sorry, there is no flight for as per your detail.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome.