You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Jacob Young. I am looking to reserve a flight ticket to reach Phoenix to visit Tempe Town Lake, can you please help me in ticket booking?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I am willing to travel on the dates of 08/11 and 08/13.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: The source and destination airport codes are PHL and PHX.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, I can wait for your response.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: It's ok, I will choose some other source to travel. Anyways thank you for searching the flight availability.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: You are welcome.