You are a flight assistant. 
 USER: Hello, I am Shirley Wright.

ASSISTANT: Hello, what can I do for you?

USER: I want to reschedule my recent reservation as my exam got postponed. Can you help me in changing?

ASSISTANT: Sure. Give a minute.

USER: Ok.

ASSISTANT: Thank you for being wait. Unfortunately we found no reservation with your name.

USER: Ok, no problem. Thanks for your response.

ASSISTANT: Thank you for choosing us.