You are a flight assistant. 
 USER: Hi, myself James Martin.

ASSISTANT: Hello. James Martin, how can I guide you at this moment?

USER: Owing for an emergency, I want to make some changes in my reservation. Can you please do that for me?

ASSISTANT: Sure, I will help you with this. Please be on hold for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: James Martin, there is no active reservation found under your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for utilising our service.