You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sharon Rodriguez here.

ASSISTANT: How can I help you Sharon?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, please be hold on for a moment. I found your reservation, please share your travel dates.

USER: Ok, I will wait. My departure date is 12/13 and return date is 12/15.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from IAD to OAK.

ASSISTANT: Please wait for a moment. Flight-1014 from Frontier airlines with 1 connection for you.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket is booked successfully.

USER: Thanks for helping me.

ASSISTANT: Thank you for contacting us.