You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Smith.

ASSISTANT: How may I guide you Mary?

USER: I am planning to visit Museum of Fine Arts at Houston, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you. Could you please provide your preferable dates of travelling?

USER: I would like to take off on 03/20 and return on 03/22.

ASSISTANT: Ok, may I know your airport codes for booking?

USER: My nearest source airport code is ORD and destination airport code is HOU.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 200. Is it ok for you?

USER: Please proceed with the booking.

ASSISTANT: Ok, your reservation has been done successfully with flight number 1014.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for approaching us, have a safe journey.