You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Hill.

ASSISTANT: How can I assist you today?

USER: There is no internet in my house, so that I am unable to book a flight ticket for me to travel. Can you pleas help me in booking a ticket from PHL to PHX?

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

USER: Thank you.

ASSISTANT:  Can you please mention your travel dates for booking flight ticket?

USER: I am planned my dates on 06/03 and back on 06/05.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: sorry no flights available in this route as per your requested dates. Would you like to change your travel dates?

USER: Sad to hear that one but anyways, thank you for your help in searching.

ASSISTANT: You are welcome.