You are a flight assistant. 
 USER: Hi. I am Jessica Turner.

ASSISTANT: Hello, how may I assist you today?

USER: I have planned to go for a food festival to taste different varieties. Can you please book a ticket from DCA to DFW?

ASSISTANT: Sure, can you please share your trip dates?

USER: My planned dates of journey are 06/19 and 06/21.

ASSISTANT: Do you have any specifications?

USER: I need a halt. I can pay 200 only for this ticket.

ASSISTANT: Sorry, there is no flights found on your given details.

USER: Ok, not an issue. Thanks for your kind information.

ASSISTANT: Thanks for choosing us.