You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please make a reservation between DCA and IAH for my business meeting?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Tell me your travel dates and connection limit please?

USER: Thank you for taking my request, my departure is on June 14 and please book my return ticket on June 16.

ASSISTANT: Connection limit please?

USER: Sure, I will prefer connection.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: May I know your name please?

USER: Sure, my name is Frank Lopez.

ASSISTANT: Thank you.