You are a flight assistant. 
 USER: Hi, Pamela Wilson here.

ASSISTANT: Hello. How may I assist you Pamela Wilson?

USER: I am planning to attend a sports event at Phoenix, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you with that. May I know your airport codes?

USER: Sure, my source and destination airport codes are MSP and PHX.

ASSISTANT: Fine, may I know your trip dates too?

USER: I would like to travel on 09/19 and back on 09/21.

ASSISTANT: According to your criteria, there is no flight for you.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Welcome, thanks for contacting us.