You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Thomas.

ASSISTANT: Nice meeting you Thomas. How may I support you?

USER: As a part of refreshment in my routine life, I want to take a small break and want to visit bay lake which is in Orlando. Please help me in making my vacation trip ticket.

ASSISTANT: That's a good idea. I will help you with it. If you know your airport codes then please let me know.

USER: Yes, my source airport code is DFW and Orlando's airport code is MCO.

ASSISTANT: Ok. On which dates you are planing to go for your vacation?

USER: I am planning to leave my location on 01/17 and want to return back on 01/19.

ASSISTANT: Ok, please wait a minute. I will check the flight availability for you.

USER: Sure, take your time and suggest me a best airline.

ASSISTANT: Sure, I will do my best to find out the best airline for you.

USER: Thank you for your efforts.

ASSISTANT: Sorry Thomas, on your provided dates no flight is available.

USER: Oh! It's sad to hear, I will go with some other agency. Anyway, thank you for your help.

ASSISTANT: Our agency is happy to help you.