You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance that you are looking from my side?

USER: Jerry Collins here.

ASSISTANT: Glad to meet you Collins.

USER: I was made a mistake while reserving my ticket, earlier in this week. So I want to change my reservation. Can you please help me for that?

ASSISTANT: Yes, please give me a moment to check it.

USER: Ok, I will wait.

ASSISTANT: I found your reservation, can you please share your travelling dates?

USER: My departure date is 11/10 and return date is 11/12.

ASSISTANT: Can you provide your location codes?

USER: My airport codes are from CLT to DFW.

ASSISTANT: Thank you for your information.

USER: Make sure my connections limit is 1.

ASSISTANT: I am sorry, I cannot find any flight on the locations which you have provided. Sorry for the trouble.

USER: Thank you for the information.

ASSISTANT: You are most welcome and have a nice day.