You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Matthew Perez.

ASSISTANT: Good morning Matthew.How can I assist you?

USER: Our friend's trip got cancelled so could you help me in cancelling the reservation?

ASSISTANT: Sure Matthew, please wait for a moment.

USER: OK.

ASSISTANT: Sorry for the inconvenience, there is no reservation found on your name.

USER: That's OK, thank you for your time.

ASSISTANT: Thank you for approaching us. Have a great day.

USER: Thank you.