You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to go for Music concert at Oriental Theatre in Washington, Can you please help me in booking?

ASSISTANT: Please provide your travel dates?

USER: Dates are 10/27 and 10/29.

ASSISTANT: Please mention your travelling airport codes?

USER: My airport codes are HOU-IAD.

ASSISTANT: Please provide connections limit?

USER: I need direct flight.

ASSISTANT: Ok. Could you please mention your name?

USER: Thomas Lopez here.

ASSISTANT: No flight is available with your requirement.

USER: No problem, I will check with another airline. Thanks for the information.

ASSISTANT: Thanks.