You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to change my existing reservation. Can you help me for that one?

ASSISTANT: May I know your name?

USER: Sure, Janet Taylor here.

ASSISTANT: Your reservation found, please share your details?

USER: Sure, my planned travel dates are 01/08 and 01/10.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My planned travel airport codes are LGA to CLT.

ASSISTANT: Do you prefer any specifications?

USER: I want a flight with single connection.

ASSISTANT: Spirit airlines providing a connecting flight in economy class.

USER: Yes, you can proceed with that booking.

ASSISTANT: Your booking is done.

USER: Thank you for the booking.

ASSISTANT: Thank you.