You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to change my trip dates to next monsoon. I want to change my existing reservation. Please help me out.

ASSISTANT: Sure, for that I need your name to check it out. Can you share with me?

USER: Ok, my name is William Thompson.

ASSISTANT: I found your reservation successfully, may I know your new dates?

USER: My trip dates are from 08/05 to 08/07.

ASSISTANT: And also please share your airport codes too.

USER: My airport codes are from PHL to JFK.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience, there is a flight-1001 with connection 1 and price 100. Shall I proceed?

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket has been done with Delta airline.

USER: Thank you for your response.

ASSISTANT: It's my pleasure. Thanks for choosing us.