You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew King.

ASSISTANT: How can I assist you?

USER: I just wast to change my recent reservation, as my parents are not allowing to travel with my friends on my birthday. Can you please help me?

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation available on your name.

USER: That's ok, thank you.

ASSISTANT: You are welcome.