You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to go Washington for attending a business meeting, can you please book a flight ticket for me?

ASSISTANT: Can you please share your nearest source and destination airport codes?

USER: I want to leave from SFO airport and destination airport is DCA.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My departure date is 02/01 and please book my return ticket also on 02/03.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Sure.

ASSISTANT: I found a direct flight with flight number 1011 and ticket fare is 200, would you like me to proceed with the booking?

USER: But I want a 1 connection limit flight. Can you please recheck is there any flight available with 1 connection limit?

ASSISTANT: Sure, can I have your name, please?

USER: Sure, my name is Michael Nelson.

ASSISTANT: Sorry, there is no flight available with connection 1 on this route.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Ok, thank you for reaching us. Have a great day.