You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please assist me to modify my travel dates as my meeting was postponed?

ASSISTANT: Sure, let me know your name to check your reservation details.

USER: Thank you so much for assisting me, myself Jessica Scott.

ASSISTANT: Thank you. Please wait for a while, let me check your reservation status.

USER: Ok, I will wait.

ASSISTANT: I am very sorry to inform you that there is no reservation found under your name in our database.

USER: Ok, no problem in that. Thank you so much.

ASSISTANT: Thank you for reaching us.