You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I aid you today?

USER: I am Nancy Harris. I need to change my existing reservation due to postpone of my document verification in office. Can you help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: We found a reservation with your name.

USER: Ok.

ASSISTANT: Kindly, share your dates of travel.

USER: My journey dates are from 06/11 to 06/13.

ASSISTANT: Help me with your airport codes.

USER: My airport codes are from SFO to MCO.

ASSISTANT: Thanks for sharing your details.

USER: Ok.

ASSISTANT: Your flight number 1028 with UA airline.

USER: Proceed with my booking.

ASSISTANT: Your ticket has been booked with a connecting flight of fare 200.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.