You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Joshua White, want to travel from OAK to HOU. Please help me in booking my ticket.

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

USER: My travelling dates are from 12/21 to 12/23.

ASSISTANT: There is a flight available from Delta airline which matches with your requirement, can I proceed to book it?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked with flight 1013.

USER: Thank you for your help.

ASSISTANT: You are welcome.