You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to change my existing reservation?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: I am Brandon Anderson.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: I found your reservation, can you please provide your source and destination airport codes?

USER: My airport codes are from  LAS to SEA.

ASSISTANT: Can you please provide your planned travel dates?

USER: My new planned travel dates are in June from 8th to 10th.

ASSISTANT: Please let me know if you have any other specifications.

USER: I always travel in a single connecting flight.

ASSISTANT: Delta airlines is providing a flight on that route with ticket fare of 100 and 1 connection, it departs at 5:00 hours and arrives at 23:00 hours. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1011, have a safe journey.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Thank you for reaching us.