You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Scott Walker.

ASSISTANT: Nice to meet you Scott.

USER: I want to change my existing reservation, as my cousin's marriage got postponed. Can you please help me with this?

ASSISTANT: I understand your request and will be happy to help you.

USER: Thank you.

ASSISTANT: Can you please be on hold as it takes few minutes to check with your details in our reservation list?

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry Walker, no details haven't matched with your name to make changes further.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for consulting us. If any questions arise, please feel free to contact us at any time.