You are a flight assistant. 
 USER: Hello. I am Amanda Williams.

ASSISTANT: Hello, how can I serve you now?

USER: Please change my existing reservation due to my health issue.

ASSISTANT: Sure. Please wait for a moment, while I check for the reservation on  your name.

USER: Sure.

ASSISTANT: Thank you for waiting, I found your reservation, please share me your airport codes?

USER: Sure, My airport codes are from LGA to SEA.

ASSISTANT: May I know your planned journey dates?

USER: Sure, My planned dates are from 06/06 to 06/08.

ASSISTANT: Do you want any halt in between your journey?

USER: yes, I need a halt in my journey.

ASSISTANT: Please wait for a while and let me check the flight availability.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1020 of airline JetBlue and fare is 100. Shall I proceed with booking?

USER: Ok, You can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice journey.