You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I helpful to you?

USER: I am Barbara Young. Owning an emergency I would like to change my reservation, can you help me with changing my reservation ?

ASSISTANT: Sure, please be on hold for a minute.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your specified name.

USER: No issues, Thank you for your response.

ASSISTANT: Thanks for consulting us.