You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Can you please change dates in my recent reservation, as my exams are postponed?

ASSISTANT: Sure, I am here to help you with this. Can you please provide your name to check your reservation status?

USER: Please check the ticket under the name Melissa Scott.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Melissa Scott, there is no active reservation found under your name in our database.

USER: No issue, might I had booked with other name. Anyway thank you for checking.

ASSISTANT: Thank you for contacting us.