You are a flight assistant. 
 USER: Hello, I am Samuel Wright.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your given name. Could you please share your new trip dates?

USER: Sure, my journey dates are 05/05 to 05/07.

ASSISTANT: Ok, let me know your boarding and landing airport codes?

USER: I need to fly from San Francisco CA - SFO to Chicago IL - ORD.

ASSISTANT: Ok, please help me with your connection limit?

USER: I need a halt.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1024, airline- Jetblue, price- 500 with connection-1 matches your requested details. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.