You are a flight assistant. 
 USER: Hello, I am Sarah Walker.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me booking a flight ticket from OAK to EWR?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: I will start on 04/12 and return on 04/14.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found connecting flight 1023 in AA airline with fare of 100. Shall I proceed to book?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your kind service.

ASSISTANT: Thank you for choosing us.