You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Rodriguez.

ASSISTANT: How may I aid you today?

USER: Can you book a flight ticket from CLT to IAD?

ASSISTANT: Sure, please mention your trip dates?

USER: My trip dates are from 09/24 to 09/26.

ASSISTANT: Do you have any price limit?

USER: Yes, I can pay up to 200.

ASSISTANT: Thanks for your details, there is a UA airline with flight 1003 and fare 300 having a lay by. Shall I reserve it?

USER: Do not proceed, I need a flight ticket under the range of 200.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for availing us.