You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: My name is Emily Thompson.

ASSISTANT: Nice to meet you Emily.

USER: I want to cancel my reservation.

ASSISTANT: How may I assist you? Sure Emily, please wait for a moment to check the reservation details?

USER: OK.

ASSISTANT: Sorry, I cannot find any reservation with your name.

USER: Thanks for your help.

ASSISTANT: Thank you so much for contacting us.