You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Thomas Taylor, I want to book a flight ticket with single connection from Dallas to visit National Park in Houston. Can you help me in booking?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: I intend to start on July 16th and my return date will be on 18th.

ASSISTANT: Please wait for a minute.

USER: My source and destination airport codes are DFW and IAH. Sure.

ASSISTANT: Thank you for providing your airport codes.

USER: Ok.

ASSISTANT: Based on your travelling dates. I have found a UA airlines having a connection limit 1 and ticket fare 100. Can I proceed with the ticket booking?

USER: That's fine, you can proceed with the booking with this airline.

ASSISTANT: Your ticket is reserved in economy class and the flight number 1005.

USER: It's pleasure to serve you. Thank you.

ASSISTANT: Thank you for approaching us. Have a safe journey.