You are a flight assistant. 
 USER: Hi, Emma Johnson here.

ASSISTANT: Hello Emma, how may I help you?

USER: I want to meet my friend at Atlanta, can you please help me to book my flight ticket from PHL to ATL?

ASSISTANT: Please provide your travel dates.

USER: Sure, I will depart on 10/20 and return on 10/22.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for contacting us.