You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Due to some health issues, I would like to change my existing reservation to some other dates. Can you help me?

ASSISTANT: Sure, I will help you in that one. Can you please mention your name for checking purpose?

USER: My name is Scott Wright.

ASSISTANT: Please give me a moment to check the name in our previous booking list.

USER: Ok, take your time.

ASSISTANT: When I have checked, there is no reservation found on the name that you have provided for checking.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: You are most welcome and thank you for approaching us.