You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Melissa Moore. I want to visit the downtown aquarium at Denver, as I heard that it was the biggest one in the world. Could you help me in ticket booking under the price limit of 200?

ASSISTANT: Sure, may I know your travelling dates?

USER: Ok, my journey dates are from 11/23 to 11/25.

ASSISTANT: Can I know your journey codes?

USER: My airport codes are from MSP to DEN.

ASSISTANT: Thank you for sharing your details, we found a flight with number 1004 and Southwest as airline.

USER: Ok.

ASSISTANT: Shall I go with booking?

USER: Yes, you can.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your support.

ASSISTANT: Thank you for reaching us.