You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Melissa King. Please book me a ticket from DEN to SEA to meet my family?

ASSISTANT: Sure, could you please share your budget for airfare?

USER: I can afford up to 5000.

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

USER: Yes, I need a halt.

ASSISTANT: Kindly mention your assign dates of travelling?

USER: I have planned to travel on 04/23 and 04/25.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for your time, sorry, no flights found on that route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.