You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Shirley Rodriguez here. I need to book my ticket from IAD to SFO. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are from Jan 29 to Jan 31.

ASSISTANT: Do you have any specifications?

USER: I need to book my ticket in economy class.

ASSISTANT: Do you have any preferences about airline?

USER: No, I am comfortable with any airlines.

ASSISTANT: Do you have any other preferences?

USER: My return time should be in the afternoon.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting. Southwest airline is providing an economy class flight with price 300 and the connections 2 is available. Shall I confirm your ticket?

USER: Please make sure that, my connection limit is 1.

ASSISTANT: There is no flights found with connections 1.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Welcome, have a great day.