You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Rebecca White. I need a reservation to meet my project manager. Can you please book a ticket with a price limit of 5000?

ASSISTANT: Sure, please share me your airport codes?

USER: My airport codes are from DCA to SEA.

ASSISTANT: May I know when you are planning to travel?

USER: I would like to leave between 04/03 and 04/05.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a halt.

ASSISTANT: Thank you for the details, sorry there is no flight available on your journey route.

USER: Ok, I will choose anther way. Thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.