You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Thompson here.

ASSISTANT: How may I guide you?

USER: I would like to change my recent reservation, can you help me to change this reservation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Thank you, take your own time to check the reservation details.

ASSISTANT: Deborah, no reservation has been found on your name in our database.

USER: That's not a issue, thanks for your information anyways.

ASSISTANT: Thank you for choosing us.