You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Benjamin Lewis here.

ASSISTANT: How may I guide you right now?

USER: I want to travel from PHX to HOU for my business meeting, can you please help me out with booking of a flight ticket on between those locations?

ASSISTANT: Sure, I am glad to assist you and can you please share your preferable travel dates?

USER: Thank you, my departure is on Oct 26 and please book my return ticket also on Oct 28.

ASSISTANT: Do you have any other needs? No flights are travelling to your location on your journey dates to book a ticket.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: You are most welcome.