You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Jacob Walker. I want to change my reservation, can you help me to modify my reservation?

ASSISTANT: Sure, please wait for a while. Thanks for waiting, we found a reservation on your name.

USER: Ok, my new journey dates are 12/23 and 12/25.

ASSISTANT: Ok, please share your airport codes?

USER: My airport code are OAK to DEN.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1002, airline- Jetblue, price- 100 with connection-1 matches your requested details.

USER: Ok, you can reserve it.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.