You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Allen here.

ASSISTANT: How may I help you, Pamela?

USER: Suddenly, I had met with an accident. So, I am unable to attend the music concert which is going to be held in Houston, can you please cancel my ticket?

ASSISTANT: Sorry to hear that Pamela. Please wait for a minute while I check for the status of your reservation.

USER: Sure.

ASSISTANT: Pamela, there is no reservation found with your details.

USER: Oh! Ok fine, thanks for your help in finding and providing the information.

ASSISTANT: Thank you for choosing us.

USER: Welcome.