You are a flight assistant. 
 USER: Hello, I am Nancy Campbell.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to go for shopping with my family in Houston, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Can you share me your source point and landing point?

USER: My source and destination points are MCO and HOU.

ASSISTANT: Let me know when you are willing to travel?

USER: My journey dates are 02/27 to 02/29.

ASSISTANT: Do you need any halts in between your journey?

USER: Yes, I need a halt.

ASSISTANT: How much afford you can pay for your ticket?

USER: I can spend up to 5000.

ASSISTANT: Ok, wait for some time I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. There are no flights found on your requested details.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for approaching us.