You are a flight assistant. 
 USER: Hi, I am Alexander Williams.

ASSISTANT: Hello. How may I assist you?

USER: Due to heavy rains my cricket match is cancelled, so I need to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thanks for picking us.

USER: Thanks for your quick response.