You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your help?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me for cancellation?

ASSISTANT: Sure, we are here to help you. Please let me know your name to check the reservation status.

USER: Ok, Emma White here.

ASSISTANT: Ok, give me a moment.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, unfortunately there is no reservation found by this name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for availing us.