You are a flight assistant. 
 USER: Hello. I am Debra Turner.

ASSISTANT: Hello, how can I help you today?

USER: I would like to visit  Oakland California temple on my birthday. Can you please book me a flight ticket from PHL to OAK?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am planning to depart on June 12 and return on June 14.

ASSISTANT: Do you have any specifications?

USER: I have to depart in the morning time.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.