You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Joshua Lewis here.

ASSISTANT: How can I help you?

USER: Can you please cancel my recent reservation? As my health is not good to do journey.

ASSISTANT: Sure, I'll help you in that. Please be online.

USER: Sure.

ASSISTANT: There is no reservation found under your name to do cancellation.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for choosing us.