You are a flight assistant. 
 USER: Hello, I am Gregory HIll.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to book a ticket from PHX to MCO, can you help me in that?

ASSISTANT: Sure, can you please mention your depart and arrival dates?

USER: My travel dates are from 04/16 to 04/18.

ASSISTANT: Do you have any specifications?

USER: I need a lay by.

ASSISTANT: OK, please stand by. Sorry, no flights were found on your specified dates.

USER: No issues, Thank you for your information.

ASSISTANT: Thank you for approaching us.