You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Harris.

ASSISTANT: Nice to meet you Emma. How may I assist you today?

USER: I want to visit Denver Zoo in this weekend with my family, so I want to book tickets from MSP to DEN.

ASSISTANT: That's great to hear. Could you please provide your preferable dates that you want to travel?

USER: We are departing on 04/19 and return on 04/21.

ASSISTANT: Ok Emma, please wait a moment to check the availability of flights and I will revert back to you.

USER: Ok.

ASSISTANT: Thank you for waiting. Based on your information, flight number 1025 from Frontier airlines with 1 connection with the fare of 400 is available for you. Shall I proceed with this?

USER: I like the service of Frontier, so I want to travel in this airlines. Please proceed for booking.

ASSISTANT: Congratulations, your reservation is done successfully under your name.

USER: Thanks for your help.

ASSISTANT: Thank you for approaching us, have a great journey.

USER: Welcome.