You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Ruth Rodriguez here. I would like to book a ticket from IAD to LGA.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travel dates are as follows Aug 14 and Aug 16.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I have no time concern.

ASSISTANT: Do you prefer any specific class to travel?

USER: No, but I would like to board a single connection flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Ruth Rodriguez, no flight is available to you on your dates.

USER: No issue, thank you for the time.

ASSISTANT: Thank you for choosing us, have a good day.