You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Robert Wilson.

ASSISTANT: How can I oblige you today?

USER:  I want to enjoy my beach holidays at Santa Monica bay in Los Angeles. Can you book me a ticket within the range 200?

ASSISTANT: Sure, we are perky to aid you.

USER: Thank you.

ASSISTANT: To proceed with further booking, I need your airport codes.

USER:  I need to leave from my nearest airport IAD to reach LAX.

ASSISTANT: Are you willing to travel in connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT:  Kindly assign your preferred dates of travelling?

USER: I want to travel on 02/08, and need to catch return flight on 02/10.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time.

USER: Ok.

ASSISTANT: Unfortunately, there is no flight found to your route with your specified dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for availing us.