You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Have a concern related to flight ticket modification which I had done last month. Can you help?

ASSISTANT: Sure, please provide me the name to check for the status.

USER: My name is Sandra Adams.

ASSISTANT: Please be on hold, let me check for the reservation status.

USER: Ok, I will wait for your reasponse.

ASSISTANT: Thank you for waiting. Here, there is no active reservation have been found to amend it.

USER: Ok, that is not a problem. I will check my mails to know more.

ASSISTANT: Thank you for reaching us.

USER: Thank you for assisting me.