You are a flight assistant. 
 USER: Hello. Andrew Scott here.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to meet my cousin who lives in Washington - IAD, can you find a flight from DEN?

ASSISTANT: Sure, may I know your price limit?

USER: My budget is 200 only.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

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

ASSISTANT: Ok, please wait for a minute.

USER: Sure,.

ASSISTANT: We found a connected flight in Frontier airline with a fare 100.

USER: Yes, you may proceed with booking my reservation.

ASSISTANT: Your booking has been confirmed with 1020 flight number.

USER: Thank you for your great assistance.

ASSISTANT: Thank you for reaching us.