You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I want to book a flight ticket from DCA to Houston HOU. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, I am planning travel on these days that is on July 08 and return on July 10.

ASSISTANT: May I know your name please?

USER: Yes, I am Matthew Garcia.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not an problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.