You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Edwards Evans.

ASSISTANT: How can I be of your assistance today?

USER:  I want to enjoy with my friends at Crissy Field, San Francisco. Can you help me in my booking?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Kindly, mention your starting date to San Francisco.

USER: I will start my journey on 07/02.

ASSISTANT: What is the budget for your ticket?

USER: I can pay up to 500.

ASSISTANT: To proceed with further booking I need your airport codes.

USER: My source airport code is Seattle, WA - SEA. My destination is San Francisco, CA - SFO.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a layover in my journey.

ASSISTANT: When did schedule your return date?

USER: I will return to Seattle on 07/04.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: Based on your request their is a plane 1019 of UA airline with the fare of 200 with a stopover. Shall I proceed?

USER: Please, confirm my seat with airline UA.

ASSISTANT: Reservation is done.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.