You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me with cancelling my previous booking due to my back pain please?

ASSISTANT: Sure, I will help you with that. Can you please share your name?

USER: My name is Susan Nelson.

ASSISTANT: Please wait for a minute.

USER: Ok, I will wait for your response.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Oh! That's very sad to know. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.