You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you?

USER: My name is Betty Edwards. Owing for an emergency, I would like to change my flight reservation. Can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait while I look into your current reservation.

USER: Sure.

ASSISTANT: I am sorry no reservation available on your name.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you.