You are a flight assistant. 
 USER: Hi, myself Emma Mitchell.

ASSISTANT: Hello Emma, how may I help you?

USER: I am looking for a direct flight from LAS to PHL.

ASSISTANT: Please provide your itinerary dates.

USER: Sure, my planned dates of trip are 03/17 and 03/19.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no flight is found.

USER: No problem, thank you so much.

ASSISTANT: Thank you for contacting us.