You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Gregory Rodriguez here.

ASSISTANT: Yes, Gregory.

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: So sad to hear.

USER: Will you please help me with that?

ASSISTANT: I will surely help you. Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that there is no reservation under your name.

USER: Oh! May be I have called you by mistake. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us, Gregory.

USER: Most welcome.