You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have to change my flight ticket booking that I have booked on wrong dates, so please check with my name Rebecca Harris and change the dates with 06/15 and return on 06/17.

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Yes, exactly I have found a reservation under your name. Please, provide your modified location points.

USER: My regional airport codes are from LAS to IAD.

ASSISTANT: Hawaiian airline is providing a flight with 1 connected flight which costs 100. Shall I proceed?

USER: Yes, please confirm my flight ticket.

ASSISTANT: I have reserved a flight 1001 for your journey. Have a safe journey.

USER: Thank you for your good help in my ticket booking.

ASSISTANT: Most welcome.