You are a flight assistant. 
 USER: Hi. Benjamin Smith is here.

ASSISTANT: Hello, how may I assist you?

USER: I would like  to attend as a guest for Rodeo and horse racing festivals at Houston. Aid me in booking a ticket with direct flight from Washington, IAD.

ASSISTANT: Sure, may I know your travelling dates?

USER: The festival is going to be held on 01/27. And completes on 01/29, so I want to book a ticket on these days.

ASSISTANT: Can you please provide your destination code?

USER: Destination is Houston, HOU.

ASSISTANT: We found a flight with number 1010 and Southwest as airline.

USER: Ok.

ASSISTANT: the cost of the ticket is 100. Shall I go with booking?

USER: Book my ticket with direct flight.

ASSISTANT: No flights found.

USER: Ok.

ASSISTANT: Thanks for aviling us.

USER: Thank you for your support.