You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: James Garcia here.

ASSISTANT: Glad to meet you Garcia.

USER: Thank you. I would like to travel from PHL to LAS, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will try to find a flight for your but I need your journey dates to search flight easily.

USER: Sure, my trip dates are from 10/10 to 10/12.

ASSISTANT: Please wait for a minute.

USER: Ok, take your time.

ASSISTANT: Thank you for your patience, there are no flights that are moving on the dates that you have provided due to sold out of tickets.

USER: That's ok, no issues. Anyway thank you for the information.

ASSISTANT: Thanks for choosing us, have a great day ahead.