You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Nicole Martin here, can you please help me in booking a ticket from PHX to PHL? As I'm planning to visit Philadelphia.

ASSISTANT: Sure, I am happy to help you with that. Can you please share your preferable journey dates?

USER: Sure, I would like to catch the flight from my location on 23rd of March and I want to fly-back on March, 25th.

ASSISTANT: Please wait for a minute, I will get back to you.

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

ASSISTANT: Nicole Martin, I am sorry to say that there is no flight found under your details.

USER: Oh! That's ok, thank you for giving the information.

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