You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to travel Atlanta for my film shooting, can you please book a flight ticket for me?

ASSISTANT: Sure, I will help you with this.

USER: Thanks.

ASSISTANT: Can I know your travel dates please?

USER: My departure date is 10/08 and please book my return ticket also on 10/10.

ASSISTANT: Please, share your location airport codes?

USER: I want to take off from OAK airport and destination airport is ATL.

ASSISTANT: Please, provide me your respected name?

USER: Myself Christine Perez.

ASSISTANT: Perez, Here I found a flight with fare of 700 in Southwest airline. Can I proceed it?

USER: Please don't book this flight, because my budget limit is 500.

ASSISTANT: I checked with your request again, I didn't found any flight with your budget of 500.

USER: No problem, I will go with another airline. Thank you for your information.

ASSISTANT: Sorry for inconvenience. Welcome. Thank you for reaching us.