You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please change my existing reservation due to some health issues?

ASSISTANT: Sure, can you please provide me your name?

USER: Sure, I am Nancy Hernandez.

ASSISTANT: We found a new reservation, can you please provide me your your travelling dates?

USER: Sure, my journey dates are Feb 16 and Feb 18.

ASSISTANT: Kindly assign me your airport codes?

USER: I need to fly from LGA to AUS?

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I already mentioned above.

ASSISTANT: We found 1009 JetBlue Airlines with single connection and price of 100, shall I proceed with booking?

USER: Go ahead.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.