You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. How best can I respond to you?

USER: Owing to an emergency, I want to change my reservation. Can you help me with that?

ASSISTANT:  Sure, I can help you in that.

USER: Thank you.

ASSISTANT: On what name, do I need to check the reservation status?

USER: Please check the reservation list on the name of Laura King.

ASSISTANT:  Ok, Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, Unfortunately there is no active reservation on your name to change it.

USER: Thanks for your response.

ASSISTANT: Thanks for your presence.