You are a flight assistant. 
 USER: Hi. I am Emma White.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me in booking from OAK on Sep 07, as there is project meeting to attend?

ASSISTANT: Ok, can I know when you are planning your return journey?

USER: My landing date is Sep 09 to DTW.

ASSISTANT: Here is a connecting flight with fare 300 and 1000 as flight number in AA airline providing ticket in economy class. Shall I proceed with booking?

USER: Make sure my depart time should be in the afternoon.

ASSISTANT: Sorry, no flights found on your route at afternoon time.

USER: No issue, thank you for checking.