You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Barbara Thompson, I am not ready to travel right now due to some health issues, so can you help me for cancelling?

ASSISTANT: Ok, I will help you.

USER: Thank you.

ASSISTANT: Thompson, please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: Thank you for waiting, there is no reservation with your credentials.

USER: Oh! It is ok, I think my sister already cancelled my reservation. Thank you for your quick response.

ASSISTANT: Ok, thank you for opting us.