You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Melissa Jackson.

ASSISTANT: How can I help you, Melissa?

USER: I would like to visit Houston Zoo with my friends, please help me in booking a ticket.

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are 05/24 and 05/26.

ASSISTANT: Please provide me your respective airport codes.

USER: My airport codes are LAX and HOU.

ASSISTANT: Jackson, there is a flight in Southwest airlines with price 100. Shall I book the ticket for you?

USER: Ok, please proceed with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1026.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a good day.