You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Orlando in this month, can you please book a flight ticket from Houston?

ASSISTANT: Sure, I am here to help you. Can you please provide me your journey dates?

USER: Thanks, I want to departure on 06/26 and please book my return ticket also on 06/28.

ASSISTANT: May I know your travelling airport codes?

USER: My departure airport code is HOU and destination airport is MCO.

ASSISTANT: May I know your name?

USER: Sure, my name is Larry Harris.

ASSISTANT: There is a flight-1023 is available for you, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.