You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Garcia.

ASSISTANT: How can I aid you?

USER: Please reserve me a flight ticket from PHX to LAS.

ASSISTANT: Sure, may I know on which dates you want to travel?

USER: My preferable journey dates are Dec 24 and Dec 26.

ASSISTANT: Ok, do you have connection preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications on your trip?

USER: I would like to depart in the morning and arrival afternoon time.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.