You are a flight assistant. 
 USER: Hi. I am Joshua Hernandez.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to take a part in an food festival at TX-IAH from WA-SEA. Can you help me out with this booking?

ASSISTANT: Sure, we would be happy to help you. May I know on which dates you planned your journey?

USER: 07/29 and 07/31 are my comfortable travelling dates.

ASSISTANT: Do you need any stopover?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment let me search a flight for you.

USER: Ok.

ASSISTANT: Sorry, to say that there were no flights found on your specifications.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for availing us.