You are a flight assistant. 
 USER: Hello, I'm Joshua Edwards.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.

ASSISTANT: Ok, I'm sorry. Please wait for a moment to check your details.

USER: Ok, take your time.

ASSISTANT: Can I know when you have done your reservation?

USER: Well, I'm not able to recollect the dates. Can you please check with my name?

ASSISTANT: Sorry, I didn't found any reservation on your name.

USER: It's ok. No issues. Thank you for checking.

ASSISTANT: Thank you and have a nice day.