You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ashley Miller.

ASSISTANT: How may I help you?

USER: Can you help me to change my reservation to next week?

ASSISTANT: Ok, please wait for a while to check your status.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found under your name to change it.

USER: Ok, no issues with that. Thank you for your time.

ASSISTANT: Thanks for contacting us.