You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Christopher Scott, I planned to meet my friend on his birthday. Can you book a flight on 02/01?

ASSISTANT: Sure, Can you share me your airport codes?

USER: I will fly from GA-ATL to CA-OAK.

ASSISTANT: May I know your return date?

USER: I will return on 02/03.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Tanks for waiting there is no flights found on your details.

USER: Ok, thank you for the information.

ASSISTANT: Tanks for approaching us.