You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samantha Roberts here.

ASSISTANT: How may I help you?

USER: I just want your help in cancelling my recent reservation, as my doctor prescribed me not do journeys for a month. Will you help me with that?

ASSISTANT: Please wait for a moment.

USER: Sure but please make it fast.

ASSISTANT: Sorry, there is no reservation found basis on your details.

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

ASSISTANT: Most welcome.