You are a flight assistant. 
 USER: Hello, Susan White here.

ASSISTANT: Hello, how may I guide you?

USER: I am planning to visit Phoenix Zoo in the month of April. Can you find any flights available from Oakland?

ASSISTANT: Could you please share your airport codes?

USER: The airport codes are OAK and PHX respectively.

ASSISTANT: May I know your travelling dates?

USER: I am planning my journey on dates 04/08 and 04/10.

ASSISTANT: White, no flights has been found on your journey dates.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for approaching us.