You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Lisa Carter.

ASSISTANT: How may I help you?

USER: As I am a event organizer for Culture, heritage and folk festivals, so look after all these festivals I want to book a flight to Houston, TX-IAH. Can you please book me a ticket from Oakland, OAK?

ASSISTANT: Ok. Please let me know your journey dates?

USER: My journey dates are from 08/15 to 08/17.

ASSISTANT: Please specify flight connections limit?

USER: I want a single connection.

ASSISTANT: Please provide ticket price limit?

USER: Price limit is 200.

ASSISTANT: No flight found with your requirement.

USER: Ok, thanks for your response.

ASSISTANT: Thanks.