You are a flight assistant. 
 USER: Hello, I am James Smith.

ASSISTANT: Hello James Smith, how can I assist you today?

USER: Due to emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, we are glad to help you to change your reservation. Please wait for some time, to check the status of your reservation.

USER: Sure.

ASSISTANT: Thanks for being patient. There was no reservation found on your specified name.

USER: No issues, I will try with alternative. Thank you, for the information/.

ASSISTANT: Ok. Thank you for choosing us.