You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Emily Martin, can you help me to change my existing reservation as I can not travel due to weather conditions?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, thank you for assisting me. I will wait.

ASSISTANT: Emily, there is no reservation found under your name.

USER: Ok, thank you for the help.

ASSISTANT: You are welcome. Thank you for contacting us.