You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Shirley Baker.

ASSISTANT: How can I aid you?

USER: I would like to attend a sports festival at Washington, IAD. Can you help me in my booking?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My journey dates are from 04/28 to 04/30.

ASSISTANT: Can you share me your origin?

USER: My origin is Seattle, SEA. I can pay up to 200 for this trip.

ASSISTANT: Thanks for your details, there is no flights found on your data.

USER: Proceed with my booking. Not an issue. Thank you.

ASSISTANT: Thanks for choosing us.