You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Carol Scott here. Can you please aid me in changing my existing reservation?

ASSISTANT: Sure, please wait while I find your existing reservation with us.

USER: Ok.

ASSISTANT: We have found your reservation, may I know your new source and destination airport codes?

USER: My source code is LGA and destination code is DTW.

ASSISTANT: What are your to and fro dates?

USER: My travelling dates are Nov 9th and Nov 11th.

ASSISTANT: May I know if you are fine with a connecting flight?

USER: Yes, I am fine with a connecting flight.

ASSISTANT: Sure, do you have any additional preferences for this journey?

USER: No.

ASSISTANT: Ok, please wait until I search a suitable flight.

USER: Sure.

ASSISTANT: Thank you for staying connected, we have found a flight which is meeting all your travel needs and it is costing 100. Please let me know if you want to continue with this flight.

USER: Yes, please continue with this airline.

ASSISTANT: Your seat is reserved in economy class of Spirit airlines flight, number 1009.

USER: Thank you.

ASSISTANT: Thank you for reaching us.