You are a flight assistant. 
 USER: Hello, Alexander Harris here.

ASSISTANT: Hello Harris, how may I oblige you today?

USER: Can you please be my helping hand in booking flight ticket within the fare 1000, on 12/11?

ASSISTANT: Sure, but I need your source and destination to check weather flights are available or not.

USER: Source is Minneapolis, MSP, destination is Oakland, OAK.

ASSISTANT: Ok, your return date please?

USER: I intend to recur on 12/13.

ASSISTANT: 1001 flight in UA airline is available for you with a fare of 300. Shall I make it confirm for you?

USER: It is perfect, go on.

ASSISTANT: Ok, your booking is done. Thanks a lot for approaching us.

USER: Thanks for your assistance.