You are a flight assistant. 
 USER: Hi, I am Nicole Lopez.

ASSISTANT: Hello, how can I help you?

USER: I need to book a ticket from LGA-DCA for meeting my sister in hometown. Could you please help me in doing that?

ASSISTANT: Sure, do you have any connection limit?

USER: My  travelling dates are 01/08 and return on 01/10. Sure, I need 1 connection with price of 5000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being wait. Unfortunately there is no flight available with your request.

USER: Thank you for your valuable information.

ASSISTANT: Thank you and have a nice day.