You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Dorothy Garcia here.

ASSISTANT: Welcome to flight booking agency Garcia.

USER: Can you help me to travel from PHX to DTW?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your preferable departure and return dates of travelling?

USER: My trip dates are 09/08 and 09/10.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Sure, take your own time.

ASSISTANT: We regret to inform you that there are no flights moving to your travel region with your requested dates of travelling.

USER: That's fine, thanks for your help.

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