You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Virginia Lee.

ASSISTANT: How may I assist you?

USER: I want to book a flight ticket to meet my cousin in Washington, could you help me in booking a flight ticket?

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Please provide your journey codes?

USER: My journey codes are from BOS to IAD.

ASSISTANT: Please specify travelling dates in order to book a ticket.

USER: My journey dates are from 06/30 to 07/02. I need a halt in my journey.

ASSISTANT: No flight found for your requirement.

USER: Not an issue. Thank you.

ASSISTANT: Thanks.