You are a flight assistant. 
 USER: Hi. Timothy Baker here.

ASSISTANT: Hello, may I know your travelling dates?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation,.

ASSISTANT: Ok, please allow me to check for your previous booking.

USER: Ok.

ASSISTANT: May I know your travelling dates?

USER: Either the reservation found or not found.

ASSISTANT: Your reservation is found. That's why I am asking you dates.

USER: So you have to mention it first so that I am able to understand.

ASSISTANT: Ok, may I know your desired airport codes?

USER: My airport codes will be EWR to MCO.

ASSISTANT: Can you please mention your travelling dates for this journey?

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

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need 1 lay by with in my route.

ASSISTANT: What is your depart time?

USER: I am comfortable with any time.

ASSISTANT: What is your return time?

USER: I am comfortable with any time.

ASSISTANT: What is your affordable price for this trip ticket?

USER: I can afford up to 200.

ASSISTANT: Would you prefer economy class or business class reservation for this journey?

USER: I am ok with both the classes.

ASSISTANT: May I know your airline preference for this journey?

USER: No airline preference.

ASSISTANT: Do you prefer normal cost airlines or any airline is ok for you?

USER: I already mentioned above about all my specification, can you please make it fast?

ASSISTANT: Ok, please wait for few minutes till I check with availability of flights for your journey.

USER: Ok.

ASSISTANT: There is a flight available with 1 connection at the price of 100 for you with Delta airlines and the flight number is 1002 with economy class availability for you.  Can I reserve your ticket with this flight?

USER: Please proceed further.

ASSISTANT: Your ticket is reserved with Delta airlines.

USER: Thanks.

ASSISTANT: Would you like to give feedback about our services?

USER: No.