You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Debra Wilson here.

ASSISTANT: How can I help you at this moment?

USER: I need your help in booking the ticket from PHX to HOU as I'm planning to participate in kite festival this year.

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: Sure, my planned departure and return travel dates are 07/11 and 07/13.

ASSISTANT: Wait a moment please.

USER: Sure, I'll wait for your response.

ASSISTANT: Debra Wilson, there are no flight services available on this route on your provided dates.

USER: Oh! That's ok, thank you for your service anyways.

ASSISTANT: Thank you for utilising our service.