You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: Sure, can I know your name please?

USER: Myself Timothy Collins.

ASSISTANT: I found your reservation, can I know the travel dates please?

USER: My new planned travel dates are Dec 19th and Dec 21st.

ASSISTANT: Could you please provide the airport codes?

USER: My location airport codes are CLT to ORD.

ASSISTANT: Can I know the connection limit please?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any requirements?

USER: No, thanks for asking.

ASSISTANT: There is a connecting flight in Frontier airline, can I proceed with it?

USER: Please proceed with it.

ASSISTANT: Your reservation have been changed with flight number 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.