You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from JFK to ATL. Could you book a ticket?

ASSISTANT: Sure, I will help you. May I know your planned journey dates please?

USER: Departure is Dec, 23 and return date is Dec, 25.

ASSISTANT: Can I have your name please?

USER: I am Ashley Martinez.

ASSISTANT: Do you have any specifications?

USER: Make sure my depart time should be morning.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Ashley Martinez, no flights has been found on your request.

USER: Thanks.

ASSISTANT: Thank you for approaching us.