You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My name is Nicole Mitchell.

ASSISTANT: Yes, Nicole.

USER: I am sports person, sports organisation is attending a sports event in Denver, So I am willing to attend the event, can you please help me for booking?

ASSISTANT: Sure, I will help you in booking the flight ticket. Please, may I know your source and destination?

USER: My airport codes are PHX and DEN.

ASSISTANT: Please Nicole, provide me your dates of travelling?

USER: My trip dates are 11/02 and 11/04.

ASSISTANT: Please, wait a moment. In my check, I didn't find any flight in your route.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome, thank you for reaching us.