You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. How best can I support you today?

USER: Please book a ticket from Houston, TX-IAH to Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Sure, On what dates you are planned to travel & return?

USER: My departure date is 03/20 and 03/22 is my return date.

ASSISTANT: Is there any restrictions on ticket fare?

USER: Price limit 1000.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Thanks.

ASSISTANT: May I know your good name?

USER: My name is Kenneth Garcia.

ASSISTANT: Ok, thanks for choosing us.