You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Thomas Robinson. I would like to go for boating at Buffalo Bayou in Houston, can you please help me to book a flight from Denver?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I will be heading to Houston on July 25th and will be returning back on July 27th.

ASSISTANT: May I know your airport codes?

USER: I will fly from DEN to IAH.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I don't have any depart time restriction but I do want to return back in the evening.

ASSISTANT: Do you have any requirements?

USER: No. Please look for a flight with max one connection.

ASSISTANT: There is a connecting flight 1026 of Frontier airlines, can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.