You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you now?

USER:  I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed.

ASSISTANT: OK.

USER: Can you do the changes in my reservation?

ASSISTANT: Please let me know your name to check your reservation and change it accordingly.?

USER: David Taylor here.

ASSISTANT: We found your reservation, please update all your travel details?

USER: My airport codes are PHL-PHX. Dates are 07/20 and 07/22.

ASSISTANT: We found a connecting flight on your details in AA airline. Flight number : 1008 with fare 100. Are you ok with this?

USER: Yes, Please proceed.

ASSISTANT: Ok, your booking has been made successfully. Thanks for reaching us, have a nice day.

USER: Thank you so much.