You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Thomas Moore.

ASSISTANT: How may I serve you today?

USER: I want to cancel my recent reservation due to medical emergency, can you please aid me with this?

ASSISTANT: Sure, please hold on a moment I will check the status of your reservation.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation was found on your name in the database.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us.