You are a flight assistant. 
 USER: Hello, Emma King here.

ASSISTANT: Hello. How can I help you?

USER: My business trip has been postponed.So I want to change my existing reservation. Can you please help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Ok, I am waiting.

ASSISTANT: Can you please provide your new airport codes?

USER: Yes. My airport codes are from DFW to MCO.

ASSISTANT: Can you please provide your travel dates?

USER: I want to depart on 12/11 and return on 12/13.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Your required details are matched with one flight ticket,  price limit is 100 and 0 connection. Shall I proceed?

USER: No, don't proceed.Actually I am looking for a flight with 1 connection only.

ASSISTANT: Sorry we can not provide 1 connection flight, as per your requested dates. Ok.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us.