You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Joshua Hernandez.

ASSISTANT: Good morning Joshua. How can I assist you at this moment?

USER: I am planning to visit Detroit Historical museum, can you please help me in booking a flight ticket?

ASSISTANT: Sure Joshua, I will help you with that. Can I have your travel dates please?

USER: My travelling dates are 07/29 and 07/31.

ASSISTANT: Ok Joshua, Can you please help me with airport codes of your journey locations?

USER: Sure, I want to fly from IAD to DTW.

ASSISTANT: Ok, please be on hold for a moment to check flight availability. Thank you for waiting. We have a flight which is having connections 2, is it ok for you?

USER: No, please search a flight with 1 connection.

ASSISTANT: Ok Joshua, I will check with that.

USER: Ok, take your time.

ASSISTANT: Sorry Joshua Hernandez, no flight is available to you with connection 1 on your travel dates.

USER: That's ok, I will choose any other way to reach my destination on time.

ASSISTANT: Ok Joshua, you can go with that.

USER: Thank you for your great service.

ASSISTANT: Thank you for choosing us, have a good day.