You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: I want to travel in a flight from DFW to SEA, to visit a Museum of Flight in Seattle. Can you help me?

ASSISTANT: Yes, I can help you in booking your ticket. Could you please tell me on which dates you are planning to travel?

USER: My period of time will be 05/10 and returning on 05/12.

ASSISTANT: Ok, please give me a minute and I will get back to you with the flight details.

USER: I need a single connection because my partner will join in the middle of my journey. Ok.

ASSISTANT: Sorry, there are no airlines available which is providing a service on your requested locations.

USER: It's ok, not an issue for me.

ASSISTANT: May I know your good name please?

USER: Myself Richard Lee.

ASSISTANT: Would you like to reconsider your dates?

USER: No, thank you for reaching us.

ASSISTANT: Thank you, have a good day.