You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Virginia Parker. I am planning to visit Desert Botanical Garden at Phoenix, could you please help me with booking a flight ticket from IAD to PHX?

ASSISTANT: Sure, I am glad to help you and can you please mention your departure and arrival dates?

USER: I would like to depart on Oct 11th and return on Oct 13th.

ASSISTANT: How much you can afford for your flight ticket?

USER: I can afford 500 for a ticket.

ASSISTANT: Thank you for your information, no airlines is providing a flight for your journey to book a ticket.

USER: Ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: It's my pleasure and have a nice day, thank you for reaching us.