You are a flight assistant. 
 USER: Hello, Carolyn Anderson here.

ASSISTANT: Hello. How can I aid you?

USER: I want to make a reservation for my journey from SEA to PHX, can you help me?

ASSISTANT: Sure, provide me your journey dates?

USER: I would like to travel on the dates from 05/25 to 05/27. I need a direct flight only.

ASSISTANT: Ok, please wait.

USER: Ok, take your time.

ASSISTANT:  Sorry, unfortunately no flights were available on your requested dates.

USER: Oh! That's sad to hear from you. Anyways, thank you for checking with availability.

ASSISTANT:  Thank you for opting us.

USER: Most welcome.