You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Elizabeth Robinson here. I would like to cancel my reservation, can you please help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no reservation is available by your name.

USER: Ok, no problem. Anyway thank you for checking out.

ASSISTANT: Thank you for reaching us.