You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I  want to modify my destination airport code because the place where I have to go is not near to that destination airport. Can you please help me to change the details?

ASSISTANT: Sure, I will help you with that. Can you please provide your name to check the reservation status with your name in our booking list?

USER: Thank you for considering my request. I am Emily Smith.

ASSISTANT: Please wait for sometime to check our booking list.

USER: Sure, I will wait for your response.

ASSISTANT: I apologise to say this Emily Smith, there is no active reservation with your name to change the reservation.

USER: Ok, not an issue. Anyway's thank you for your information.

ASSISTANT: You are welcome, thank you for reaching our service. Hope you have a nice day ahead.