You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit Phoenix, can you please make a reservation from PHL to PHX?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: My travel dates are on 12/26 and 12/28.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a single connecting flight.

ASSISTANT: May I know your name?

USER: My is Michelle Martinez.

ASSISTANT: Sorry to say, no flight is available for you as per your requests.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.