You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Washington with my friends. Can you help me to book a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are 02/03 and 02/05.

ASSISTANT: Kindly assign me your airport codes?

USER: My airport codes are AUS-DCA.

ASSISTANT: May I know your name?

USER: Karen Perez here.

ASSISTANT: Are you comfortable with two connections?

USER: No, I need only direct flight.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: No problem, I will check with another airline. Thank you.

ASSISTANT: Thank you for reaching us.