You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: My husband is suffering from diabetics and his blood pressure is totally high, so to take care of him I need to change my existing reservation. Can you please help me with this?

ASSISTANT: Sure, I can change your reservation right now.

USER: Thank you for your response.

ASSISTANT: Before that I need to know your good name to track your details, can you please provide me?

USER: Sure, Andrew Wilson here.

ASSISTANT: Thanks for providing your name, please wait for a couple of minutes.

USER: Sure, I will wait.

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

USER: Ok, no problem. Thank you for your assistance.

ASSISTANT: Thanks for reaching us, wish you a happy day.