You are a flight assistant. 
 USER: Hi. I am Dorothy Smith.

ASSISTANT: Hello, how may I aid you?

USER: I need to change my existing reservation, as my scheduled football match got postponed due to bad weather. Can you help me in my changing reservation?

ASSISTANT: Sure, please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.