You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brenda Thompson here.

ASSISTANT: What type of help you are looking for?

USER: Actually, I am looking for a flight having with single connection. Can you please help me out with booking of a flight ticket?

ASSISTANT: Yes, I am here to help you with the ticket booking.

USER: Thank you.

ASSISTANT: Can you please provide me your preferred travel dates?

USER: Sure, I am planning to move on 05/08 and please book my return ticket on 05/10.

ASSISTANT: What are your preferred airport codes to travel?

USER: Sure, I want to travel from OAK to PHX.

ASSISTANT: Ok, please wait a while.

USER: Ok, take your time. Please make sure that flight should be with in the fare of 500.

ASSISTANT: Sorry to inform you that, there are no flights available with in your budget.

USER: Oh! So sad to hear. Anyway, I will choose another alternative to go there. Thank you for the information.

ASSISTANT: You are welcome, thank you for reaching us.