You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Mitchell.

ASSISTANT: How may I assist you today?

USER: I planned to attend for a wedding in EWR, can you please help me to book a flight ticket from OAK?

ASSISTANT: Sure, I'll help you in that. May I know your planned travel dates please?

USER: I planned to start on 08/19 and 08/21.

ASSISTANT: Hawaiian airlines is having a flight on that route with travel charge of 200, shall I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: I have successfully booked your ticket with flight-1001, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.