You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Can you help me in booking from DFW to IAD, as there is a business trip?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are Jun 24 to Jun 26.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight in normal-cost.

ASSISTANT: On which name shall I proceed with the reservation?

USER: I am Raymond Robinson.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching our service.