You are a flight assistant. 
 USER: Hello. I'm Larry Phillips.

ASSISTANT: Hello, how can I assist you?

USER: I want to travel to Chicago, IL - ORD from Phoenix, AZ - PHX to meet my school friend. Can you help me, To book a ticket?

ASSISTANT: Sure, we are happy to help you. Please let me know your journey dates to book a ticket.

USER: My depart day is on 07/09. Return day is on 07/11. I wish to travel in a direct flight. I have a price limit of 5000.

ASSISTANT: Ok, just a moment, I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thanks for giving your valuable time. Unfortunately, we do not found any flight that matches your requirements.

USER: OK, No problem.

ASSISTANT: Thanks for contacting us.

USER: Thank you, For your efforts.