You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric young.

ASSISTANT: How may I oblige you today?

USER: I am looking for a direct flight, can you help me in booking a ticket from DFW to DEN?

ASSISTANT: Sure, when are you planning to travel?

USER: My travel dates are from 02/24 to 02/26.

ASSISTANT: Do you have any price limit?

USER: My price limit is 200.

ASSISTANT: Thank you for providing your details, I regret that there are no flights found  with the given details.

USER: No issues, Thank you for your information.

ASSISTANT: Thank you for opting our agency.