You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to modify the ticket details in the past ticket?

ASSISTANT: Sure, may I know your name?

USER: Thank you. My name is Jonathan Carter.

ASSISTANT: Wait a minute.

USER: Sure, I will wait for your response,.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: It's ok, not a problem with that. Thank you for your time.

ASSISTANT: Thank you for choosing us.