You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book me a flight ticket from HOU to DTW to meet my family.

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: I have planned to travel on July 11th and return on July 13th.

ASSISTANT:  Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I want to return at morning time.

ASSISTANT: May I know your name?

USER: Gary Rodriguez.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Sorry, no flight is running on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us.