You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you out?

USER: My arts exhibition has to be exhibited at bishop arts, but it was postponed due to heavy rains.

ASSISTANT: Ok.

USER: This is the reason, I want to change my existing reservation with the name of Mary Smith.

ASSISTANT: Sure, I can assist you with this.

USER: Thank you.

ASSISTANT: Please wait, I will get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, Mary Smith.

USER: Ok.

ASSISTANT: But, we could not help you out because, no reservation is done on your name.

USER: No problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your support to me.