You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I would like to change the destination airport code in the existing reservation. Can you please help me to change the ticket details?

ASSISTANT: Sure, I will help you in changing the ticket. Can you please provide the name to check the reservation status?

USER: Thank you. Sure,  I am Pamela Brown.

ASSISTANT: Sorry, I could not find any reservation on your name.

USER: That's not an issue. Thank you for your support.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.