You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I help you?

USER: I am Jeffrey Clark, and I need to book a flight ticket to Washington to enjoy Long trips with my cousin. Can you help me with fare 200?

ASSISTANT: Sure, Please help me with your journey codes.

USER: Sure, I need to depart from Dallas & fort Worth DFW to Washington DCA.

ASSISTANT: May I know the travel dates?

USER: Sure, I need to fly on 03/08 and 03/10.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no worries at all.

ASSISTANT: Thank you for choosing us.

USER: Thank you for support.