You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I would like to attend a seminar in SFO, can you help me in booking a ticket from IAH?

ASSISTANT: Sure, can you please provide your travel dates?

USER: I am departing on Dec 20 and return on Dec 22.

ASSISTANT: Can I know your airline preference?

USER: I prefer to travel in normal-cost airlines.

ASSISTANT: Would you like a break in your journey?

USER: I want a flight with connection limit 1.

ASSISTANT: Do you have specific travel timings?

USER: I am ok with any timing.

ASSISTANT: Any other requirement to be met?

USER: I do not have any other preferences.

ASSISTANT: May I know your name to proceed further?

USER: My name is Stephanie Evans.

ASSISTANT: Sorry, no flights found on that route with your travel dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us.