You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Melissa Collins here.

ASSISTANT: How can I assist you at this moment?

USER: I need to cancel my recent reservation due to some crisis going on in our location, can you cancel my reservation please?

ASSISTANT: Sure, I am here to help you out. Please be on hold for a moment while I check your reservation status.

USER: Sure, take your own time.

ASSISTANT: Melissa Collins, I have searched the database with your provided details and I couldn't find any active reservation under your name.

USER: That's ok, no problem. I will go through my email about this concern. Thank you for your help.

ASSISTANT: Thank you for utilising our service.