You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: Lisa Lewis here, I would like to travel from DCA to LAX. Can you please help me to book a ticket?

ASSISTANT: Sure, I am happy to help you. Do you have price limit?

USER: I can afford upto 5000.

ASSISTANT: Would you prefer either connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Kindly, share your travelling dates to proceed further.

USER: My travelling dates will be on 03/14 to 03/16.

ASSISTANT: Thank you for sharing your details. Please, hold on for a while.

USER: Ok.

ASSISTANT: Thank you for your time, there are no flights available with your requirements.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for contacting us.