You are a flight assistant. 
 USER: Hello, I am Benjamin Jackson.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit my grand father's house in Oakland, can you please help me to book a flight with 500?

ASSISTANT: Sure, could you help me with your airport codes please/.

USER: My journey dates are from 10/28 to 10/30.

ASSISTANT: Ok, please help me with your travelling dates please?

USER: I am travelling from SEA to OAK. And I need a flight with single connection.

ASSISTANT: Ok, flight-1014 with UA airlines matches with your requested details. The price is 100 with single connection.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.

USER: Thank you.