You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit Philadelphia, can you please book me a ticket from PHX to PHL?

ASSISTANT: On which dates you want to travel to Philadelphia?

USER: My preferable journey dates are from 07/24 to 07/26.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: There is on flight available on your desired travel dates. May I know your name please?

USER: Ok, not an issue. I will find any alternate for this trip. My name is Daniel Lee.

ASSISTANT: Thank you for choosing us.

USER: Thank you for providing information.