You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Scott Mitchell and I want to attend a music festival at Dallas so, can you please avail me a flight ticket from Oakland?

ASSISTANT: Sure. can I know your travelling dates?

USER: I want to travel on 06/04 and intend to return on 06/06.

ASSISTANT: Please share your airport codes?

USER: CA-OAK and TX-DFW are my airport codes.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Not a problem, thank you for your information.

ASSISTANT: Thank you for reaching us.