You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to change my reservation?

ASSISTANT: Sure, I can assist you with that one and on whose name you have reserved your previous ticket booking?

USER: I am Susan Rodriguez.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thank you for being on hold, I have checked with your information in my portal to change your booking but is displayed that there is no user name found to change it.

USER: No issues, thank you for checking.

ASSISTANT: You are most welcome and thank you for approaching us.