You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ruth Taylor here.

ASSISTANT: How can I aid you today?

USER: Can you please reserve me a flight ticket from LGA to IAD?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My trip dates are 09/04 - 09/06.

ASSISTANT: Do you need a connecting flight?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications?

USER: My depart time should be in the afternoon.

ASSISTANT: Can I know your good name?

USER: Already mentioned above.

ASSISTANT: Thank you for sharing your information, currently no flights are available with the given information.

USER: It's ok, not a problem. Thank you.

ASSISTANT: Thank you.