You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I useful to you?

USER: As I am a wildlife photographer, I need to reach Philadelphia Zoo to explore new things about fauna at Los Angels. Can you help me to book a flight ticket?

ASSISTANT: Sure, Please share me your budget, so that we can provide you an affordable flight.

USER: I need the flight ticket within the fare limit 200.

ASSISTANT: Do you require any stopovers in your journey?

USER: I am happy if I get a connecting flight.

ASSISTANT: When are you planning to make your journey?

USER: I need to reach Los Angels On 10/26.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER: My nearest city is Houston and it's airport code is TX-IAH. I need to reach Los Angels, CA-LAX.

ASSISTANT: Can you please share your intended date of return?

USER: I will return within two days that is on 10/28.

ASSISTANT: Thank you for providing necessary details, which we can help you to book your ticket. Please be on hold let you know the information.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for your time. Please mention your good name to proceed further.

USER: You can book the ticket with the name Jessica Thomas.

ASSISTANT: Thank you. Sorry to inform you that unfortunately there is no flights available by the given details.

USER: That's ok, I will choose any alternative. Thanks for your information.

ASSISTANT: Thank you for being with us and have a great day.