You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Kimberly Evans is my name.

ASSISTANT: I found your reservation, may I know your airport codes?

USER: My airport codes will be IAD to AUS.

ASSISTANT: Ok, let me know your preferable dates too.

USER: My trip dates will be May 20 to May 22.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight-1001 in economy class. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.