You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I'm Cynthia Edwards. I just need your help in booking a plane ticket from HOU to PHX, can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: Ok, my planned dates of journey are 08/30 and 09/01.

ASSISTANT: Sorry, there is no plane as per your requested travelling dates.

USER: No problem, thank you for checking.

ASSISTANT: My pleasure.