You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Joseph Lee.

ASSISTANT: How can I assist you today?

USER: I need to schedule my trip to travel Washington. Can you please help me in reserving the ticket from OAK to IAD?

ASSISTANT: Sure, i can help you with that. May I know your planned travel dates please?

USER: I am willing to travel on 06/22 and again I will retrieve on 06/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

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

USER: Yes, please proceed for this flight.

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

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for reaching us.