You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Williams.

ASSISTANT: In what way can I guide you now?

USER: We are planning to go Washington DC-IAD to participate in the event of fashion designer with my colleagues from Dallas. Can you please help me to book my ticket?

ASSISTANT: Sure, I am perky to help you. How much can you afford for your journey?

USER: I can afford up to 500.

ASSISTANT: Kindly mention your boarding point.

USER: Boarding point is at DFW.

ASSISTANT: I need your journey dates to book a ticket.

USER: I will depart on 05/09 and return on 05/11.

ASSISTANT: We found a direct flight for you. Is it comfortable to you?

USER: Ok, do not proceed.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you.