You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Elizabeth Martinez. I am planning to go for heritage tour in HOU. Can you book me a ticket from MSP?

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

USER: My departure is on July 11th and arrival is on 13th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking to have 1 lay over within my route.

ASSISTANT: May I know your airline preference?

USER: I am fine with any airline.

ASSISTANT: Which class do you prefer?

USER: I am okay with any class.

ASSISTANT: Do you have any other requirements?

USER: I need to depart in the afternoon.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for choosing us.