You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Lisa Thomas.

ASSISTANT: How can I render you today?

USER: Due to bad weather conditions at my destination point, my plan to attend for film festival got postponed. Will you help me in changing my reservation?

ASSISTANT: Sure, we are here to aid you today.

USER: Thank you.

ASSISTANT: Please, wait for a while I will check with the reservation and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name Lisa Thomas.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for availing us.