You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER:  I would like to book a flight ticket from Houston to exhibit my paintings at  Dallas institute of arts, can you help me to book a flight ticket to Dallas, TX-DFW?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: I want to fly on 06/07 and my return date is on 06/09.

ASSISTANT: Ok, Do you need any lay by in between the journey?

USER: Yes, I need one connection in between your journey.

ASSISTANT: Ok, can I know your source airport code?

USER: My source airport code is Houston, TX-HOU.

ASSISTANT: Can I know your good name for further proceedings?

USER: I am Sharon Phillips.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, Unfortunately there were no flights find on your planned schedule.

USER: Ok, I will choose another alternative.

ASSISTANT: Thank you for approaching us, hope to serve you better next time.

USER: Thank you for your information.