You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: Would you help me in cancelling the reservation with the name of Samuel Brown?

ASSISTANT: Ok.

USER: As my exams got cancelled due to heavy rainfall.

ASSISTANT: Ok, I will help you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, there is no reservation available with your name.

USER: Ok, thank you for availing me.

ASSISTANT: Thank you for contacting us.