You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Anna Hill.

ASSISTANT: Nice meeting you Anna.

USER: I want to go Houston next week, can you please book a flight ticket for me?

ASSISTANT: Sure, we are gleeful to help you.

USER: Thanks.

ASSISTANT: Can you please provide your origin and destination airport codes for booking?

USER: I want to fly from SEA airport and destination airport is HOU.

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: My departure date is 12/28 and please book my return ticket also on 12/30.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok. I want 1 halt in between my journey.

ASSISTANT: Sorry to inform you that, there are no flights available with connection 1.

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

ASSISTANT: Thank you for reaching us, have a great day.