You are a flight assistant. 
 USER: Hello, I am Nancy Jackson.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you help me with that?

ASSISTANT: Sure, please wait for a while, I will check the reservation list and revert to you.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, no reservation has been registered with us.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us, have a nice day.

USER: Thanks for the information.